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Strangers raise almost $50,000 for sick stray dog

<p>Cindy was so overweight she could barely move when Lana Chapman found her lying in the dirt outside a 7-Eleven.</p> <p>Chapman, an Australian living in Koh Samui, Thailand, immediately decided to take the dog in, and her kind act has inspired hundreds of people online. </p> <p>The Aussie woman has been helping local street dogs for years and was determined to give Cindy a better life. Weighing in at almost 45kgs when Chapman found her, she has helped the pup lose weight and tracked her progress online where she went viral. </p> <p>It was all going well until a few weeks ago Cindy stopped eating and had a lump on her neck. </p> <p>"Usually she runs around the house with excitement [but] it took her about two minutes before she started to eat. That was really out of the norm," Chapman told <em>9news.com.au</em>.</p> <p>After a few vet visits she was diagnosed with lymphoma, a common cancer in dogs.</p> <p>"We started chemo the same day," Chapman said.</p> <p>"It was awful as the vet didn't think she would live for four weeks, but we wanted to try anything we could to help her."</p> <p>Initial tests alone cost almost $2,500, and Cindy needed at least 19 weeks of chemotherapy to survive. </p> <p>With pet insurance not an option as most vets on the island did not accept insurance claims, Chapman relied on the help of strangers and started a <a href="https://www.gofundme.com/f/cindys-lymphoma-fight" target="_blank" rel="noopener">GoFundMe</a> in Cindy's name, hoping to raise $10,000 to cover for the cost of her care. </p> <p>"$10,000 still wouldn't cover the costs but I thought it would really assist us," she said.</p> <p>To her surprise, strangers flocked to help raising almost $50,000 for Cindy in a matter of days, with the highest donation so far being $5,000. </p> <p>The fundraising page was also filled with messages of support, with one writing: "Cindy you are the sweetest girl! I am sending you all the love, you can do this."</p> <p>"Wishing you well with your treatment Cindy, hoping for a speedy recovery. Sending lots of love to your humans too x," added another.</p> <p>Chapman said she was blown away by people's generosity, and never imagined that so many strangers would be willing to help the stray pup. </p> <p>"People have been following her from the day she was rescued off the streets so they have a major soft spot for her," she said.</p> <p>"We definitely would have struggled to pay for this [without donations]."</p> <p>Chapman added that the donations received so far will cover all of Cindy's cancer treatment, and the left over cash will be used to help other street dogs on the island. </p> <p><em>Images: GoFundMe/ Lana Chapman</em></p> <p> </p>

Family & Pets

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Tourism hotspot in Italy attracts attention for selling strange souvenir

<p dir="ltr">Italy’s picturesque region of Lake Como has started selling a unique souvenir, making many people raise their eyebrows. </p> <p dir="ltr">The north Italian tourist hotspot has long been known for being the backdrop of many Hollywood films, while also hosting countless celebrity weddings, with many famous faces owning houses in the region. </p> <p dir="ltr">For those travelling to the stunning Lake Como and wanting to purchase a souvenir to remind them of their travels, you can now forgo the classic keyring or magnet for a more unique souvenir item.</p> <p dir="ltr">Communications company ItalyComunica says it has bottled the very air of Italy’s picturesque Lake Como and is selling these cans for €9.90 ($16 AUD) apiece.</p> <p dir="ltr">Each can is said to contain 400 millilitres of “100% authentic air” collected from Lake Como, with the website stating buyers can “Open it whenever you need a moment of escape, tranquillity, or simply beauty.”</p> <p dir="ltr">In an attempt to capitalise on the ever-growing visitor numbers, marketing specialist Davide Abagnale originally created the e-commerce site to sell dedicated Lake Como posters, before delving into the world of the unique souvenirs. </p> <p dir="ltr">His latest initiative of selling canned air aims to “create a souvenir that could be easily transported in a suitcase for tourists” and “something original, fun and even provocative.” </p> <p dir="ltr">Abagnale told <em><a href="https://edition.cnn.com/2024/11/04/travel/lake-como-air-cans-on-sale-intl-scli/index.html">CNN</a></em>, “It’s not a product, it’s a tangible memory that you carry in your heart,” adding that once tourists are home and have opened the can, they can repurpose it as a souvenir pen holder or plant holder. </p> <p dir="ltr">Not everyone was first onboard with the idea, as Como mayor Alessandro Rapinese said it wouldn’t be his first idea for tourists, and would prefer they take home other souvenirs, like the silk scarves the area is known for.</p> <p dir="ltr">“It’s a novel idea, but not for everyone,” he told <em>CNN</em>. “But as mayor of one of Italy’s most beautiful cities, if someone wants to take some of their air home, that’s fine as long as they also take beautiful memories of this area.”</p> <p dir="ltr"><em>Image credits: ItalyComunica/CNN/Shutterstock</em></p>

International Travel

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Drunk couple forces emergency landing after mid-air meltdown

<p>A Ryanair flight to Ibiza had to be diverted after a drunk couple allegedly assaulted cabin crew and other passengers. </p> <p>The plane, carrying holiday-makers from Manchester to Ibiza had to make an emergency landing in Toulouse, where police hauled the intoxicated passengers off the plane. </p> <p>A British traveller on the flight, who asked to remain anonymous, recalled the man "swigging duty free vodka" on the first hour of the flight, before he started arguing with a male cabin crew member and punched him in the face. </p> <p>As they tried to restrain him, the intoxicated man assaulted another passenger and spat at a woman, hurling verbal abuse at her. </p> <p>“He was kicking off with everyone, he was out of control,” the witness said.</p> <p>Flight attendants reportedly warned him that the flight would have to be diverted if he didn't calm down, but he replied: “I don’t give a f***.” </p> <p>The altercation lasted for about 40 minutes until Flight FR2626 had to land in Toulouse, and 12 police officers took him away in custody. </p> <p>Video of the attack showed the man shouting and swearing at the police, before assaulting another traveller as he was being escorted off the flight. </p> <p>After he left the plane, his partner started harassing another traveller, hitting him and calling him a "paedo". </p> <p>In another video, police were filmed physically restraining the woman, before removing her from the plane. </p> <p>The flight spent just over an hour and a half on the tarmac at the Toulouse-Blagnac Airport before continuing its journey to Ibiza.</p> <p>Just last week Ryanair chief executive Michael O’Leary called for flyers to be limited to two drinks at airports to crack down on disorderly behaviour on flights. </p> <p>“We don’t want to begrudge people having a drink," he said. </p> <p>“But we don’t allow people to drink-drive, yet we keep putting them up in aircraft at 33,000ft.</p> <p>“In the old days, people who drank too much would eventually fall over or fall asleep. But now those passengers are also on tablets and powder.</p> <p>“It’s the mix. You get much more aggressive behaviour that becomes very difficult to manage.”</p> <p>The airline has started carrying out hand luggage checks to stop passengers on flights to Ibiza and the Greek islands from smuggling duty-free alcohol on-board. </p> <p>A Ryanair spokesperson has apologised for the incident saying:  “This flight from Manchester to Ibiza diverted to Toulouse after a small group of passengers became disruptive in-flight." </p> <p>“The crew called ahead for police assistance, who met the aircraft upon landing at Toulouse and offloaded two passengers before this flight continued to Ibiza.</p> <p>“We sincerely apologise to passengers for any inconvenience caused as a result of these unruly passengers’ behaviour, which was beyond Ryanair’s control. This is now a matter for local police.”</p> <p><em>Image: news.com.au</em></p>

Travel Trouble

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Parents under fire for taking their sick toddler on a long-haul flight

<p>A couple has come under fire after documenting their experience online of boarding a long-haul flight with their toddler, despite the child being sick. </p> <p>Alina and her husband were excited to go on their long-awaited holiday to Thailand with their one-year-old son in tow, taking off on their first big family trip. </p> <p>However, shortly before they were set to take off, their child developed a raging fever, and they decided to go on the trip anyway. </p> <p>Taking the experience to social media, Alina said her son’s temperature soared to around 40 degrees, with their little boy’s condition escalating so rapidly that the parents were considering calling off their entire trip. </p> <p>“My husband and I even wanted to cancel the flight,” she confessed in the video, which has received around 1.4 million views.</p> <p>However, after realising they would be out of pocket by several thousands of dollars if they cancelled the trip at such short notice, they decided to take the risk and board the plane. </p> <p>“Our tickets would have been wasted, and the trip that cost us $3,000 would have been wasted,” the mum wrote. "One plus of this flight was that the flight was at night, and the child could sleep and recover.”</p> <p>In the clip, the parents were seen walking their son around the plane, cradling the sick toddler as he cried uncontrollably.</p> <p>Luckily, the parents “managed to bring down the temperature”, but they weren’t convinced their son would keep quiet for the rest of the trip. </p> <p>“We were so worried about how the baby would feel on an eight-hour flight,” she continued, walking the baby up and down the corridors of the airport, trying to calm him down. </p> <p>As they tried to settle the child, they realised that their hopes that he would sleep the whole way were misguided. </p> <p>“The flight turned out to be difficult,” Alina confessed. “The baby kept waking and crying.” </p> <p>In the middle of the night, their son’s fever returned, which forced the parents to “bring the temperature down again” and left them “very worried” about their son’s health. </p> <p>Their baby’s fever took a toll on the parents as well, who complained of feeling “squeezed like a lemon” while trying to keep his temperature down, as Alina recalled, “We took turns looking after the baby so each of us could sleep.”</p> <p>In a later video, the parents defended their choice to take their son on the flight despite his intense fever and blamed it on his teething, not sickness. </p> <p>“Our baby wasn’t sick, he was teething, and that’s why he had a fever,” she said. “If our child had been sick, we would have cancelled everything … I consider myself a wonderful mother.”</p> <p>Despite the mother's clarification of her son's fever, the parents were slammed for even considering taking a sick child on such a long flight. </p> <p>“It’s OK, don’t worry about making anyone else on that flight sick,” a sarcastic comment read. “This is so tremendously selfish, you are appalling for doing this to him and others.” </p> <p>“I was in the same situation,” another parent said. “I lost all bookings, but who cares, my daughter comes first always and forever, no matter the amount of money!”</p> <p>“Trips come and go; your baby’s health is priceless!” read another comment. “Forty degrees is a hospital admission! Not a flight to Thailand!”</p> <p>However, not everyone was as judgmental, with many parents extending their sympathies to the first-time parents, as one person wrote, “You know what’s best for your baby. Everyone will say things. But only you will know when you are in that situation.”</p> <p>“Everyone is a first-time parent,” another defended. “This was a lesson learned. A baby’s health is of utmost importance. No holiday is more important than that. I hope he is OK now.”</p> <p><em>Image credits: TikTok</em></p>

Travel Trouble

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I’m feeling run down. Why am I more likely to get sick? And how can I boost my immune system?

<div class="theconversation-article-body"> <p><em><a href="https://theconversation.com/profiles/sathana-dushyanthen-1169328">Sathana Dushyanthen</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p>It has been a long winter, filled with many viruses and cost-of-living pressures, on top of the usual mix of work, study, life admin and caring responsibilities.</p> <p>Stress is an inevitable part of life. In short bursts, our stress response has evolved as a survival mechanism to help us be more alert in <a href="https://theconversation.com/no-you-cant-blame-all-your-health-issues-on-high-cortisol-heres-how-the-hormone-works-203162">fight or flight situations</a>.</p> <p>But when stress is chronic, it weakens the immune system and makes us more vulnerable to illnesses such as the <a href="https://www.healthline.com/health/can-stress-make-you-sick#:%7E:text=The%20common%20cold&amp;text=Inflammation%20has%20been%20linked%20to,to%20the%20cold%2Dcausing%20germs.">common cold</a>, <a href="https://journals.lww.com/psychosomaticmedicine/abstract/1999/03000/psychological_stress,_cytokine_production,_and.9.aspx">flu</a> and <a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/smi.3017">COVID</a>.</p> <h2>Stress makes it harder to fight off viruses</h2> <p>When the immune system starts to break down, a virus that would normally have been under control starts to flourish.</p> <p>Once you begin to feel sick, the <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4465119/">stress response</a> rises, making it harder for the immune system to fight off the disease. You may be sick more often and for longer periods of time, without enough immune cells primed and ready to <a href="https://link.springer.com/chapter/10.1007/978-3-030-16996-1_6">fight</a>.</p> <p>In the 1990s, American psychology professor Sheldon Cohen and his colleagues conducted a number of <a href="https://www.cmu.edu/common-cold-project/">studies</a> where healthy people were exposed to an upper respiratory infection, through drops of virus placed directly into their <a href="https://www.nejm.org/doi/full/10.1056/NEJM199108293250903">nose</a>.</p> <p>These participants were then quarantined in a hotel and monitored closely to determine who became <a href="https://theconversation.com/stress-less-it-might-protect-you-from-covid-153361">ill</a>.</p> <p>One of the most important factors predicting who got sick was prolonged psychological <a href="https://journals.sagepub.com/doi/full/10.1177/1745691620942516">stress</a>.</p> <h2>Cortisol suppresses immunity</h2> <p>“Short-term stress” is stress that lasts for a period of minutes to hours, while “chronic stress” persists for several hours per day for <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5964013/#:%7E:text=Therefore%2C%20a%20major%20distinguishing%20characteristic,weeks%20or%20months%20%5B9%5D.">weeks or months</a>.</p> <p>When faced with a perceived threat, psychological or physical, the hypothalamus region of the brain sets off an alarm system. This signals the release of a surge of hormones, including adrenaline and <a href="https://www.embopress.org/doi/full/10.15252/msb.20209510">cortisol</a>.</p> <figure class="align-center "><img src="https://images.theconversation.com/files/616892/original/file-20240903-18-blrqoz.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/616892/original/file-20240903-18-blrqoz.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=472&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/616892/original/file-20240903-18-blrqoz.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=472&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/616892/original/file-20240903-18-blrqoz.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=472&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/616892/original/file-20240903-18-blrqoz.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=593&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/616892/original/file-20240903-18-blrqoz.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=593&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/616892/original/file-20240903-18-blrqoz.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=593&amp;fit=crop&amp;dpr=3 2262w" alt="Human brain illustration" /><figcaption><span class="caption">The hypothalamus sets off an alarm system in response to a real or perceived threat.</span> <span class="attribution"><a class="source" href="https://www.shutterstock.com/image-illustration/hypothalamus-causes-vasoconstriction-illustration-medical-brain-435142264">stefan3andrei/Shutterstock</a></span></figcaption></figure> <p>In a typical stress response, <a href="https://www.sciencedirect.com/science/article/abs/pii/S147149060300173X">cortisol levels</a> quickly increase when stress occurs, and then rapidly drop back to normal once the stress has subsided. In the short term, cortisol suppresses inflammation, to ensure the body has enough energy available to respond to an <a href="https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2019.00245/full">immediate threat</a>.</p> <p>But in the longer term, chronic stress can be harmful. A Harvard University study <a href="https://jamanetwork.com/journals/jamapsychiatry/fullarticle/2796097">from 2022</a> showed that people suffering from psychological distress in the lead up to their COVID infection had a greater chance of experiencing long COVID. They <a href="https://jamanetwork.com/journals/jamapsychiatry/fullarticle/2796097">classified</a> this distress as depression, probable anxiety, perceived stress, worry about COVID and loneliness.</p> <p>Those suffering distress had close to a <a href="https://jamanetwork.com/journals/jamapsychiatry/fullarticle/2796097">50% greater risk</a> of long COVID compared to other <a href="https://theconversation.com/being-stressed-out-before-you-get-covid-increases-your-chances-of-long-covid-heres-why-190649">participants</a>. Cortisol has been shown to be high in the most severe cases of <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7102614/">COVID</a>.</p> <h2>Stress causes inflammation</h2> <p><a href="https://stories.uq.edu.au/imb/the-edge/inflammation/what-is-inflammation/index.html">Inflammation</a> is a short-term reaction to an injury or infection. It is responsible for trafficking immune cells in your body so the right cells are present in the right locations at the right times and at the right <a href="https://link.springer.com/article/10.1007/s12026-014-8517-0">levels</a>.</p> <p>The immune cells also store a memory of that threat to respond faster and more effectively the next <a href="https://theconversation.com/being-stressed-out-before-you-get-covid-increases-your-chances-of-long-covid-heres-why-190649">time</a>.</p> <p>Initially, circulating immune cells detect and flock to the site of <a href="https://www.nature.com/articles/ni1275">infection</a>. Messenger proteins, known as pro-inflammatory cytokines, are released by immune cells, to signal the danger and recruit help, and our immune system responds to neutralise the <a href="https://stories.uq.edu.au/imb/the-edge/inflammation/what-is-inflammation/index.html">threat</a>.</p> <p>During this response to the infection, if the immune system produces too much of these inflammatory chemicals, it can trigger symptoms such as nasal congestion and runny <a href="https://journals.sagepub.com/doi/full/10.1177/1745691620942516">nose</a>.</p> <h2>What about chronic stress?</h2> <p>Chronic stress causes persistently high cortisol secretion, which remains high even in the absence of an immediate <a href="https://theconversation.com/no-you-cant-blame-all-your-health-issues-on-high-cortisol-heres-how-the-hormone-works-203162">stressor</a>.</p> <p>The immune system becomes desensitised and unresponsive to this <a href="https://www.sciencedirect.com/science/article/abs/pii/S1043661816307435">cortisol suppression</a>, increasing low-grade “silent” inflammation and the production of pro-inflammatory cytokines (the messenger proteins).</p> <p>Immune cells become exhausted and start to <a href="https://www.fxmedicine.com.au/blog-post/adrenal-immune-connection">malfunction</a>. The body loses the ability to turn down the inflammatory <a href="https://journals.sagepub.com/doi/full/10.1177/1745691620942516">response</a>.</p> <p>Over time, the immune system changes the way it responds by reprogramming to a “<a href="https://www.unimelb.edu.au/newsroom/news/2021/april/how-stress-can-stop-immune-cells-in-their-tracks">low surveillance mode</a>”. The immune system misses early opportunities to destroy threats, and the process of recovery can take <a href="https://theconversation.com/being-stressed-out-before-you-get-covid-increases-your-chances-of-long-covid-heres-why-190649">longer</a>.</p> <h2>So how can you manage your stress?</h2> <p>We can actively strengthen our immunity and natural defences by managing our <a href="https://theconversation.com/stuck-in-fight-or-flight-mode-5-ways-to-complete-the-stress-cycle-and-avoid-burnout-or-depression-218599">stress levels</a>. Rather than letting stress build up, try to address it early and frequently by:</p> <p><strong>1) Getting enough sleep</strong></p> <p>Getting enough sleep reduces <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3132857/">cortisol levels</a> and inflammation. During sleep, the immune system <a href="https://link.springer.com/chapter/10.1007/978-1-4939-6578-6_12">releases</a> <a href="https://theconversation.com/sleep-wont-cure-the-coronavirus-but-it-can-help-our-bodies-fight-it-134674">cytokines</a>, which help fight infections and inflammation.</p> <p><strong>2) Taking regular exercise</strong></p> <p>Exercising helps the lymphatic system (which balances bodily fluids as part of the immune system) circulate and allows immune cells to monitor for threats, while sweating flushes <a href="https://www.healthline.com/nutrition/does-exercise-boost-immune-system">toxins</a>. Physical activity also lowers stress hormone levels through the release of positive brain <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7387807/">signals</a>.</p> <p><strong>3) Eating a healthy diet</strong></p> <p>Ensuring your diet contains enough nutrients – such as the B vitamins, and the full breadth of minerals like magnesium, iron and zinc – during times of stress has a positive impact on overall stress <a href="https://www.ncbi.nlm.nih.gov/pubmed/22782571">levels</a>. Staying hydrated helps the body to flush out <a href="https://theconversation.com/a-strong-immune-system-helps-ward-off-colds-and-flus-but-its-not-the-only-factor-99512">toxins</a>.</p> <p><strong>4) Socialising and practising meditation or mindfulness</strong></p> <p>These activities increase endorphins and serotonin, which improve mood and have <a href="https://www.sciencedirect.com/science/article/pii/S2949834123000351">anti-inflammatory effects</a>. Breathing exercises and meditation stimulate the parasympathetic nervous system, which calms down our stress responses so we can “reset” and reduce <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4940234/">cortisol levels</a>.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/237456/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/sathana-dushyanthen-1169328">Sathana Dushyanthen</a>, Academic Specialist &amp; Lecturer in Cancer Sciences &amp; Digital Health| Superstar of STEM| Science Communicator, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/im-feeling-run-down-why-am-i-more-likely-to-get-sick-and-how-can-i-boost-my-immune-system-237456">original article</a>.</em></p> </div>

Body

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I’ve recovered from a cold but I still have a hoarse voice. What should I do?

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/yeptain-leung-1563747">Yeptain Leung</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p>Cold, flu, COVID and <a href="https://theconversation.com/rsv-is-everywhere-right-now-what-parents-need-to-know-about-respiratory-syncytial-virus-208855">RSV</a> have been <a href="https://www.abc.net.au/news/2024-06-21/flu-whooping-cough-rsv-cases-up-as-covid-cases-unkown/104002964">circulating across Australia this winter</a>. Many of us have caught and recovered from <a href="https://theconversation.com/i-feel-sick-how-do-i-know-if-i-have-the-flu-covid-rsv-or-something-else-234266">one of these</a> common upper respiratory tract infections.</p> <p>But for some people their impact is ongoing. Even if your throat isn’t <a href="https://theconversation.com/sore-throats-suck-do-throat-lozenges-help-at-all-184454">sore</a> anymore, your voice may still be hoarse or croaky.</p> <p>So what happens to the voice when we get a virus? And what happens after?</p> <p>Here’s what you should know if your voice is still hoarse for days – or even weeks – after your other symptoms have resolved.</p> <h2>Why does my voice get croaky during a cold?</h2> <p>A healthy voice is normally clear and strong. It’s powered by the lungs, which push air past the vocal cords to make them vibrate. These vibrations are amplified in the throat and mouth, creating the voice we hear.</p> <p>The vocal cords are two elastic muscles situated in your throat, around the level of your laryngeal prominence, or Adam’s apple. (Although everyone has one, it tends to be more pronounced in males.) The vocal cords are small and delicate – around the size of your fingernail. Any small change in their structure will affect how the voice sounds.</p> <p>When the vocal cords become inflamed – known as laryngitis – your voice will sound different. Laryngitis is a common part of upper respiratory tract infections, but can also be caused through misuse.</p> <figure class="align-center "><img src="https://images.theconversation.com/files/614706/original/file-20240821-17-nzg1mc.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/614706/original/file-20240821-17-nzg1mc.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=366&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/614706/original/file-20240821-17-nzg1mc.jpg?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=366&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/614706/original/file-20240821-17-nzg1mc.jpg?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=366&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/614706/original/file-20240821-17-nzg1mc.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=460&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/614706/original/file-20240821-17-nzg1mc.jpg?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=460&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/614706/original/file-20240821-17-nzg1mc.jpg?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=460&amp;fit=crop&amp;dpr=3 2262w" alt="Two drawn circles comparing normal vocal cords with inflamed, red vocal cords." /><figcaption><span class="caption">Viruses such as the common cold can inflame the vocal cords.</span> <span class="attribution"><a class="source" href="https://www.shutterstock.com/image-vector/dry-sore-loss-cough-virus-viral-1821458117">Pepermpron/Shutterstock</a></span></figcaption></figure> <p>Catching a virus triggers the body’s defence mechanisms. White blood cells are recruited to kill the virus and heal the tissues in the vocal cords. They become inflamed, but also stiffer. It’s harder for them to vibrate, so the voice comes out hoarse and croaky.</p> <p>In some instances, you may find it hard to speak in a loud voice or have a reduced pitch range, meaning you can’t go as high or loud as normal. You may even “lose” your voice altogether.</p> <p>Coughing can also make things worse. It is the body’s way of trying to clear the airways of irritation, including your own mucus dripping onto your throat (<a href="https://www.health.harvard.edu/staying-healthy/treatments-for-post-nasal-drip">post-nasal drip</a>). But coughing slams the vocal cords together with force.</p> <p>Chronic coughing can lead to persistent inflammation and even thicken the vocal cords. This thickening is the body trying to protect itself, similar to developing a callus when a pair of new shoes rubs.</p> <p>Thickening on your vocal cords can lead to physical changes in the vocal cords – such as developing a growth or “nodule” – and further deterioration of your voice quality.</p> <figure class="align-center "><img src="https://images.theconversation.com/files/614707/original/file-20240821-21-vizs73.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/614707/original/file-20240821-21-vizs73.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=376&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/614707/original/file-20240821-21-vizs73.jpg?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=376&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/614707/original/file-20240821-21-vizs73.jpg?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=376&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/614707/original/file-20240821-21-vizs73.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=473&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/614707/original/file-20240821-21-vizs73.jpg?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=473&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/614707/original/file-20240821-21-vizs73.jpg?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=473&amp;fit=crop&amp;dpr=3 2262w" alt="Diagram compares healthy vocal cords with cords that have nodules, two small bumps." /><figcaption><span class="caption">Coughing and exertion can cause inflamed vocal cords to thicken and develop nodules.</span> <span class="attribution"><a class="source" href="https://www.shutterstock.com/image-vector/dry-sore-loss-cough-virus-viral-1821458126">Pepermpron/Shutterstock</a></span></figcaption></figure> <h2>How can you care for your voice during infection?</h2> <p>People who use their voices a lot professionally – such as teachers, call centre workers and singers – are often desperate to resume their vocal activities. They are <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7478078/">more at risk</a> of forcing their voice before it’s ready.</p> <p>The good news is most viral infections resolve themselves. Your voice is usually restored within five to ten days of recovering from a cold.</p> <p>Occasionally, your pharmacist or doctor may prescribe cough suppressants to limit additional damage to the vocal cords (among other reasons) or mucolytics, which break down mucus. But the most effective treatments for viral upper respiratory tract infections are hydration and rest.</p> <p>Drink plenty of water, avoid alcohol and exposure to cigarette smoke. <a href="https://www.healthdirect.gov.au/laryngitis#:%7E:text=You%20can%20help%20your%20voice%20recover%20by%3A%201,avoid%20nasal%20decongestants%20%28these%20make%20your%20throat%20drier%29">Inhaling steam</a> by making yourself a cup of hot water will also help clear blocked noses and hydrate your vocal cords.</p> <p>Rest your voice by talking as little as possible. If you do need to talk, don’t whisper – this <a href="https://www.sciencedirect.com/science/article/abs/pii/S0892199704001730">strains the muscles</a>.</p> <p>Instead, consider using “<a href="https://www.instagram.com/reel/C0d-oNIMM1y/">confidential voice</a>”. This is a soft voice – not a whisper – that gently vibrates your vocal cords but puts less strain on your voice than normal speech. Think of the voice you use when communicating with someone close by.</p> <p>During the first five to ten days of your infection, it is important not to push through. Exerting the voice by talking a lot or loudly will only exacerbate the situation. Once you’ve recovered from your cold, you can speak as you would normally.</p> <h2>What should you do if your voice is still hoarse after recovery?</h2> <p>If your voice hasn’t returned to normal after <a href="https://www.healthdirect.gov.au/laryngitis">two to three weeks</a>, you should seek medical attention from your doctor, who may refer you to an ear nose and throat specialist.</p> <p>If you’ve developed a nodule, the specialist would likely refer you to a speech pathologist who will show you how to take care of your voice. Many nodules can be <a href="https://britishvoiceassociation.org.uk/voicecare_vocal-nodules.htm">treated</a> with voice therapy and don’t require surgery.</p> <p>You may have also developed a habit of straining your vocal cords, if you forced yourself to speak or sing while they were inflamed. This can be a reason why some people continue to have a hoarse voice even when they’ve recovered from the cold.</p> <p>In those cases, a speech pathologist may play a valuable role. They may teach you to exercises that make voicing more efficient. For example, <a href="https://www.youtube.com/watch?v=fwNPp-RS4IY">lip trills</a> (blowing raspberries) are a fun and easy way you can learn to relax the voice. This can help break the habit of straining your voice you may have developed during infection.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/236398/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><a href="https://theconversation.com/profiles/yeptain-leung-1563747">Yeptain Leung</a>, Postdoctoral Research and Lecturer of Speech Pathology, School of Health Sciences, <em><a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/ive-recovered-from-a-cold-but-i-still-have-a-hoarse-voice-what-should-i-do-236398">original article</a>.</p> </div>

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I’ve been sick. When can I start exercising again?

<p><em><a href="https://theconversation.com/profiles/ken-nosaka-169021">Ken Nosaka</a>, <a href="https://theconversation.com/institutions/edith-cowan-university-720">Edith Cowan University</a></em></p> <p>You’ve had a cold or the flu and your symptoms have begun to subside. Your nose has stopped dripping, your cough is clearing and your head and muscles no longer ache.</p> <p>You’re ready to get off the couch. But is it too early to go for a run? Here’s what to consider when getting back to exercising after illness.</p> <h2>Exercise can boost your immune system – but not always</h2> <p>Exercise <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6523821/">reduces the chance</a> of getting respiratory infections by increasing your immune function and the ability to fight off viruses.</p> <p>However, an acute bout of endurance exercise may temporarily increase your susceptibility to upper respiratory infections, such as colds and the flu, via the short-term suppression of your immune system. This is known as the “open window” theory.</p> <p>A <a href="https://pubmed.ncbi.nlm.nih.gov/20839496/">study</a> from 2010 examined changes in trained cyclists’ immune systems up to eight hours after two-hour high-intensity cycling. It found important immune functions were suppressed, resulting in an increased rate of upper respiratory infections after the intense endurance exercise.</p> <p>So, we have to be more careful after performing harder exercises than normal.</p> <h2>Can you exercise when you’re sick?</h2> <p>This depends on the severity of your symptoms and the intensity of exercise.</p> <p>Mild to moderate exercise (reducing the intensity and length of workout) may be OK if your symptoms are a runny nose, nasal congestion, sneezing and minor sore throat, without a fever.</p> <p>Exercise may help you feel better by opening your nasal passages and temporarily relieving nasal congestion.</p> <p>However, if you try to exercise at your normal intensity when you are sick, you risk injury or more serious illness. So it’s important to listen to your body.</p> <p>If your symptoms include chest congestion, a cough, upset stomach, fever, fatigue or widespread muscle aches, avoid exercising. Exercising when you have these symptoms may worsen the symptoms and prolong the recovery time.</p> <p>If you’ve had the flu or another respiratory illness that caused a high fever, make sure your temperature is back to normal before getting back to exercise. Exercising raises your body temperature, so if you already have a fever, your temperature will become high quicker, which makes you sicker.</p> <p>If you have COVID or other contagious illnesses, stay at home, rest and isolate yourself from others.</p> <p>When you’re sick and feel weak, don’t force yourself to exercise. Focus instead on getting plenty of rest. This may actually shorten the time it takes to recover and resume your normal workout routine.</p> <h2>I’ve been sick for a few weeks. What has happened to my strength and fitness?</h2> <p>You may think taking two weeks off from training is disastrous, and worry you’ll lose the gains you’ve made in your previous workouts. But it could be just what the body needs.</p> <p>It’s true that almost all training benefits are <a href="https://journals.lww.com/acsm-csmr/fulltext/2019/04000/sports_training_principles.2.aspx">reversible</a> to some degree. This means the physical fitness that you have built up over time can be lost without regular exercise.</p> <p>To study the effects of de-training on our body functions, researchers have undertaken “bed rest” studies, where healthy volunteers spend up to 70 days in bed. They <a href="https://journals.physiology.org/doi/full/10.1152/japplphysiol.00415.2017">found</a> that V̇O₂max (the maximum amount of oxygen a person can use during maximal exercise, which is a measure of <a href="https://my.clevelandclinic.org/health/articles/7050-aerobic-exercise">aerobic</a> fitness) declines 0.3–0.4% a day. And the higher pre-bed-rest V̇O₂max levels, the <a href="https://journals.physiology.org/doi/full/10.1152/japplphysiol.00415.2017">larger</a> the declines.</p> <p>In terms of skeletal muscles, upper thigh muscles <a href="https://doi.org/10.1152/japplphysiol.00363.2020">become smaller by</a> 2% after five days of bed rest, 5% at 14 days, and 12% at 35 days of bed rest.</p> <p><a href="https://journals.physiology.org/doi/full/10.1152/japplphysiol.00363.2020">Muscle strength declines more</a> than muscle mass: knee extensor muscle strength gets weaker by 8% at five days, 12% at 14 days and more than 20% after around 35 days of bed rest.</p> <p>This is why it feels harder to do the same exercises after resting for even five days.</p> <p>But in <a href="https://iaaspace.org/product/guidelines-for-standardization-of-bed-rest-studies-in-the-spaceflight-context/">bed rest studies</a>, physical activities are strictly limited, and even standing up from a bed is prohibited during the whole length of a study. When we’re sick in bed, we have some physical activities such as sitting on a bed, standing up and walking to the toilet. These activities could reduce the rate of decreases in our physical functions compared with study participants.</p> <h2>How to ease back into exercise</h2> <p>Start with a lower-intensity workout initially, such as going for a walk instead of a run. Your first workout back should be light so you don’t get out of breath. Go low (intensity) and go slow.</p> <p>Gradually increase the volume and intensity to the previous level. It may take the same number of days or weeks you rested to get back to where you were. If you were absent from an exercise routine for two weeks, for example, it may require two weeks for your fitness to return to the same level.</p> <p>If you feel exhausted after exercising, take an extra day off before working out again. A day or two off from exercising shouldn’t affect your performance very much.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/233130/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/ken-nosaka-169021">Ken Nosaka</a>, Professor of Exercise and Sports Science, <a href="https://theconversation.com/institutions/edith-cowan-university-720">Edith Cowan University</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/ive-been-sick-when-can-i-start-exercising-again-233130">original article</a>.</em></p>

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I feel sick. How do I know if I have the flu, COVID, RSV or something else?

<div class="theconversation-article-body"> <p><em><a href="https://theconversation.com/profiles/natasha-yates-1213624">Natasha Yates</a>, <a href="https://theconversation.com/institutions/bond-university-863">Bond University</a></em></p> <p>You wake with a sore throat and realise you are sick. Is this going to be a two-day or a two-week illness? Should you go to a doctor or just go to bed?</p> <p>Most respiratory illnesses have very similar symptoms at the start: sore throat, congested or runny nose, headache, fatigue and fever. This may progress to a dry cough.</p> <p>Best case scenario is that you have “<a href="https://lungfoundation.com.au/wp-content/uploads/2018/09/Factsheet-Common-Cold-Mar2016.pdf">a cold</a>” (which can be any one of hundreds of viruses, most commonly rhinovirus), which is short-lived and self-limiting.</p> <p>But some respiratory illnesses can be much more serious. Here is a brief guide to some important bugs to know about that are circulating this winter, and how to work out which one you have.</p> <h2>Respiratory syncytial virus (RSV)</h2> <p>For most people an RSV infection will feel like “a cold” – annoying, but only lasting a few days.</p> <p>However, for babies, older adults and people with immune issues, it can lead to <a href="https://www.rch.org.au/kidsinfo/fact_sheets/bronchiolitis/">bronchiolitis</a> or pneumonia, and even become life-threatening.</p> <p>RSV isn’t seasonal, which means you are just as likely to get it in summer as in winter. However, it is highly contagious so we noticed it <a href="https://pubmed.ncbi.nlm.nih.gov/32986804">disappearing almost completely</a> during COVID lockdowns.</p> <p>There is now a <a href="https://www.tga.gov.au/sites/default/files/2024-02/covid-19-rapid-antigen-self-tests-are-approved-australia-ifu-406813.PDF">rapid-antigen test (RAT) for RSV</a> which also checks for influenza and COVID, and is the best way of finding out if RSV is what is causing symptoms.</p> <p>Recently, a preventative immune therapy has become available for high risk babies (<a href="https://www.schn.health.nsw.gov.au/respiratory-syncytial-virus-rsv-monoclonal-antibody-factsheet">nirsevimab</a>) and there are also <a href="https://ncirs.org.au/ncirs-fact-sheets-faqs-and-other-resources/respiratory-syncytial-virus-rsv-frequently-asked">vaccines for higher risk adults</a>. Nirsevimab is also available to all babies for free in <a href="https://www.health.wa.gov.au/Articles/N_R/Respiratory-syncytial-virus-RSV-immunisation">Western Australia</a> and <a href="https://www.health.qld.gov.au/clinical-practice/guidelines-procedures/diseases-infection/immunisation/paediatric-rsv-prevention-program">Queensland</a>.</p> <p>But there are no specific treatments. Adults who get it simply have to ride it out (using whatever you need to <a href="https://www.mayoclinic.org/diseases-conditions/common-cold/diagnosis-treatment/drc-20351611">manage symptoms</a>).</p> <p>Babies and higher risk patients need to present to an emergency department if they test positive for RSV and are also looking or feeling very unwell (this might mean rapid shallow breathing, fevers not coming down with paracetamol or ibuprofen, a baby not feeding, mottled-looking skin, or going blue around the mouth).</p> <p>If a patient has developed a bronchiolitis or pneumonia, they may need to be hospitalised.</p> <h2>Influenza</h2> <p>Once you have had the “true flu” (influenza), you will find it frustrating when people call their sniffly cold-like symptoms a “flu”.</p> <p>Influenza infections generally start with a sore throat and headache which quickly turns into high fevers, generalised aches and excessive fatigue. You feel like you have been hit by a truck and may struggle to get out of bed. This can last a week or more, even in people who are generally fit and healthy.</p> <p>Influenza is a major public health issue internationally, with 3–5 million cases of severe illness and <a href="https://www.who.int/news-room/fact-sheets/detail/influenza-(seasonal)">290,000 to 650,000 respiratory deaths annually</a>.</p> <p>People who are at <a href="https://immunisationhandbook.health.gov.au/contents/vaccine-preventable-diseases/influenza-flu">greater risk of complications</a> from influenza include pregnant women, children under five, adults aged 65 and over, First Nations peoples, and people with chronic or immunosuppressive medical conditions. For this reason, annual vaccination is <a href="https://www.health.gov.au/topics/immunisation/vaccines/influenza-flu-vaccine">recommended and funded</a> for vulnerable people.</p> <p>Vaccination is also readily available for <a href="https://www.health.gov.au/topics/immunisation/immunisation-contacts">all Australians who want it</a>, through pharmacies as well as medical clinics, usually at a cost of less than A$30. In <a href="https://www.vaccinate.initiatives.qld.gov.au/what-to-vaccinate-against/influenza#:%7E:text=The%20flu%20vaccine%20is%20free,.qld.gov.au">some states</a>, it’s free for all residents.</p> <p>Influenza is seasonal, with definite peaks in the winter months. This is why vaccines are offered from early autumn.</p> <p>If you think you may have influenza, there are now home-testing RATs: all current influenza RATs are in combination with COVID RATs, as the symptoms overlap.</p> <p>Treatment for most people is to manage symptoms and try to avoid spreading it around. Doctors can also <a href="https://theconversation.com/i-think-i-have-the-flu-should-i-ask-my-gp-for-antivirals-210457">prescribe antivirals</a> to vulnerable patients; these work best if started within 48 hours of symptoms.</p> <h2>COVID</h2> <p>It has been less than five years since COVID-19, caused by SARS-CoV-2, started to spread around the world in pandemic proportions. Although COVID is no longer a <a href="https://www.health.gov.au/news/ahppc-statement-end-of-covid-19-emergency-response">public health emergency</a>, it still causes <a href="https://www.abs.gov.au/articles/deaths-due-covid-19-influenza-and-rsv-australia-2022-may-2024">more deaths than influenza and RSV combined</a>.</p> <p>Unlike RSV and influenza, only those <a href="https://www.health.gov.au/topics/covid-19/protect-yourself-and-others/high-risk-groups">aged over 70</a> are in a high-risk age group for COVID. Other <a href="https://www.cdc.gov/covid/risk-factors/?CDC_AAref_Val=https://www.cdc.gov/coronavirus/2019-ncov/need-extra-precautions/people-with-medical-conditions.html">factors besides age</a> may put you at higher risk of becoming very unwell when infected by this virus. This includes having other respiratory diseases (such as asthma or chronic obstructive pulmonary disease, also known as COPD), diabetes, cancer, kidney disease, obesity or heart disease.</p> <p>Unlike most respiratory viruses, SARS-CoV-2 tends to set off inflammation beyond the respiratory system. This can involve a range of other organs including the heart, kidneys and blood vessels.</p> <p>Although most people are back to their usual work or study after a week or two, a significant proportion go on to experience extended symptoms such as fatigue, breathlessness, brain fog and mood changes. When these last <a href="https://aci.health.nsw.gov.au/statewide-programs/critical-intelligence-unit/post-acute-sequelae">more than 12 weeks</a>, without any other explanation for symptoms, it’s called <a href="https://www.healthdirect.gov.au/covid-19/post-covid-symptoms-long-covid">long COVID</a>.</p> <p>COVID vaccines can prevent serious illness and have been <a href="https://pubmed.ncbi.nlm.nih.gov/38282394/">monitored</a> for several years now for their safety and effectiveness. Current vaccination recommendations are <a href="https://www.health.gov.au/resources/publications/atagi-statement-on-the-administration-of-covid-19-vaccines-in-2024?language=en">based on age and immune status</a>. It’s worth discussing them with your doctor if you are unsure whether you would benefit or not.</p> <p><a href="https://www.health.gov.au/topics/covid-19/oral-treatments">Antivirals</a> can treat COVID in higher-risk people who contract it, whether vaccinated or not.</p> <p>Specific advice about what to do if you test positive on a RAT will vary according to your current state guidelines and workplace, however the <a href="https://www.health.gov.au/topics/covid-19/testing-positive">general principles</a> are always: avoid spreading the virus to others, and give yourself time to rest and recover.</p> <hr /> <p><iframe id="ConNR" class="tc-infographic-datawrapper" style="border: 0;" src="https://datawrapper.dwcdn.net/ConNR/" width="100%" height="400px" frameborder="0" scrolling="no"></iframe></p> <hr /> <h2>What if it’s not one of those?</h2> <p>So you’ve done your combined RSV/flu/COVID RAT and the result is negative. But you still have symptoms. What else could it be?</p> <p>More than 200 different viruses can cause cold and flu symptoms, including rhinovirus (mentioned above), adenovirus and sometimes even <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2130424/">undefined pathogens</a>.</p> <p>If an illness progresses to a cough which will not go away, and/or you start coughing up sputum, this could be a bacterial infection, such as pertussis (whooping cough), <em>streptococcus pneumoniae</em>, <em>haemophilus influenzae</em> or <em>moraxella catarrhalis</em>. So it’s worth <a href="https://www.racgp.org.au/getattachment/0a637812-c8f0-45a2-af9c-fa215b64f8e4/attachment.aspx">getting assessed by a GP</a> who may do a chest Xray and/or <a href="https://www.rcpa.edu.au/Manuals/RCPA-Manual/Pathology-Tests/M/MCS-sputum">test your sputum</a>, particularly if they suspect pneumonia.</p> <p>You also may also start out with what is clearly a viral infection but then get a secondary bacterial infection later. So if you are getting more unwell over time, it’s worth getting tested, in case antibiotics will help.</p> <p>However, taking antibiotics for a purely viral illness will not only be useless, it can contribute to harmful <a href="https://www.nps.org.au/consumers/antibiotic-resistance-the-facts">antibiotic resistance</a> and give you unwanted side effects.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/234266/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/natasha-yates-1213624">Natasha Yates</a>, General Practitioner, PhD Candidate, <a href="https://theconversation.com/institutions/bond-university-863">Bond University</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/i-feel-sick-how-do-i-know-if-i-have-the-flu-covid-rsv-or-something-else-234266">original article</a>.</em></p> </div>

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Flight cancelled after crew member loses it at passenger

<p>An Air Canada flight heading from Morocco to Montreal was cancelled on Friday after a flight attendant lost it at a passenger who reportedly requested a blanket. </p> <p>Viral footage of the incident showed a female flight attendant yelling: “You will behave or we will get off!” at a female passenger. </p> <p>“I’ll tell the captain right away. Yes or no?”</p> <p>When a passenger asked the flight attendant to call the captain, she refused and said: “I don’t want no bullying against my crew”.</p> <p>She then stormed up the aisle before she turned around and yelled: “Everyone behave! Be quiet … or you’re getting off.”</p> <blockquote class="twitter-tweet"> <p dir="ltr" lang="en">Stress levels are quite high in the sky these days : An Air Canada flight from Casablanca (CMN) to Montreal (YUL) was canceled due to the inappropriate behavior of a flight attendant on July 26, 2024.</p> <p>The Airbus A330-343 aircraft (C-GHLM) did the taxi aiming a departure while… <a href="https://t.co/h3s4fbGF5A">pic.twitter.com/h3s4fbGF5A</a></p> <p>— FL360aero (@fl360aero) <a href="https://twitter.com/fl360aero/status/1817249195960455420?ref_src=twsrc%5Etfw">July 27, 2024</a></p></blockquote> <p>According to <em>CTV News</em>, the meltdown occurred after the passenger asked for a blanket. </p> <p>In a statement to the publication, Air Canada said the flight had been rescheduled for Saturday with a different crew. </p> <p>“We are taking this incident very seriously. It is under review, and we will take appropriate action,” the statement read.</p> <p>“It is under review, and we will take appropriate action. We apologise to our customers and deeply regret that their experience today fell far short of what they have come to expect when flying with Air Canada.”</p> <p>The airline has also offered compensation to all passengers affected by the delay. </p> <p><em>Images: X </em></p> <p> </p>

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What’s the difference between ‘man flu’ and flu? Hint: men may not be exaggerating

<p><em><a href="https://theconversation.com/profiles/thea-van-de-mortel-1134101">Thea van de Mortel</a>, <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a></em></p> <p>The term “man flu” takes a <a href="https://www.oxfordlearnersdictionaries.com/definition/english/man-flu">humorous poke</a> at men with minor respiratory infections, such as colds, who supposedly exaggerate their symptoms.</p> <p>According to the stereotype, a man lies on the sofa with a box of tissues. Meanwhile his female partner, also with a snotty nose, carries on working from home, doing the chores and looking after him.</p> <p>But is man flu real? Is there a valid biological reason behind men’s symptoms or are men just malingering? And how does man flu differ from flu?</p> <h2>What are the similarities?</h2> <p>Man flu could refer to a number of respiratory infections – a cold, flu, even a mild case of COVID. So it’s difficult to compare man flu with flu.</p> <p>But for simplicity, let’s say man flu is actually a cold. If that’s the case, man flu and flu have some similar features.</p> <p>Both are caused by viruses (but different ones). Both are improved with rest, fluids, and if needed painkillers, throat lozenges or decongestants to <a href="https://activities.nps.org.au/nps-order-form/Resources/NPS-Cold-and-Flu-Brochure-May-2014.pdf">manage symptoms</a>.</p> <p>Both <a href="https://www.cdc.gov/flu/symptoms/coldflu.htm">can share</a> similar symptoms. Typically, more severe symptoms such as fever, body aches, violent shivering and headaches are more common in flu (but sometimes occur in colds). Meanwhile sore throats, runny noses, congestion and sneezing are more common in colds. A cough is common in both.</p> <h2>What are the differences?</h2> <p><a href="https://www.cdc.gov/flu/about/keyfacts.htm">Flu</a> is a more serious and sometimes fatal respiratory infection caused by the influenza virus. Colds are caused by various viruses such as <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3553670/">rhinoviruses</a>, <a href="https://www.cdc.gov/adenovirus/about/?CDC_AAref_Val=https://www.cdc.gov/adenovirus/symptoms.html">adenoviruses</a>, and common cold <a href="https://journals.lww.com/pidj/citation/2022/03000/proving_etiologic_relationships_to_disease_.18.aspx">coronaviruses</a>, and are rarely serious.<br />Colds tend to <a href="https://www.cdc.gov/flu/symptoms/coldflu.htm">start gradually</a> while flu tends to start abruptly.</p> <p>Flu can be <a href="https://www.cdc.gov/flu/professionals/diagnosis/overview-testing-methods.htm">detected</a> with laboratory or at-home tests. Man flu is not an official diagnosis.</p> <p>Severe flu symptoms may be prevented with <a href="https://www.cdc.gov/flu/vaccines-work/vaccineeffect.htm">a vaccine</a>, while cold symptoms cannot.</p> <p>Serious flu infections may also be <a href="https://www.health.nsw.gov.au/Infectious/factsheets/Pages/racf-antiviral-treatments-and-prophylaxis.aspx">prevented or treated</a> with antiviral drugs such as Tamiflu. There are no antivirals for colds.</p> <h2>OK, but is man flu real?</h2> <p>Again, let’s assume man flu is a cold. Do men really have worse colds than women? The picture is complicated.</p> <p><a href="https://www.sciencedirect.com/science/article/pii/S0022399922003324?via%3Dihub">One study</a>, with the title “Man flu is not a thing”, did in fact show there <em>were</em> differences in men’s and women’s symptoms.</p> <p>This study looked at symptoms of acute rhinosinusitis. That’s inflammation of the nasal passages and sinuses, which would explain a runny or stuffy nose, a sinus headache or face pain.</p> <p>When researchers assessed participants at the start of the study, men and women had similar symptoms. But by days five and eight of the study, women had fewer or less-severe symptoms. In other words, women had recovered faster.</p> <p>But when participants rated their own symptoms, we saw a somewhat different picture. Women rated their symptoms worse than how the researchers rated them at the start, but said they recovered more quickly.</p> <p>All this suggests men were not exaggerating their symptoms and did indeed recover more slowly. It also suggests women feel their symptoms more strongly at the start.</p> <h2>Why is this happening?</h2> <p>It’s not straightforward to tease out what’s going on biologically.</p> <p>There are <a href="https://www.nature.com/articles/nri.2016.90">differences</a> in immune responses between men and women that provide a plausible reason for worse symptoms in men.</p> <p>For instance, women generally produce antibodies more efficiently, so they <a href="https://www.nature.com/articles/nri.2016.90">respond more effectively</a> to vaccination. Other aspects of women’s immune system also appear to <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2735332/">work more strongly</a>.</p> <p>So why do women tend to have <a href="https://www.nature.com/articles/nri.2016.90">stronger immune responses</a> overall? That’s probably partly because women have two X chromosomes while men have one. X chromosomes carry important <a href="https://www.nature.com/articles/nri.2016.90#Tab3">immune function genes</a>. This gives women the benefit of immune-related genes from two different chromosomes.</p> <p>Oestrogen (the female sex hormone) also seems to <a href="https://www.nature.com/articles/nri.2016.90">strengthen</a> the immune response, and as levels vary throughout the lifespan, so does <a href="https://www.science.org/doi/10.1126/sciimmunol.aan2946">the strength</a> of women’s immune systems.</p> <p>Men are certainly more likely to die from some infectious diseases, such as <a href="https://www.aihw.gov.au/reports/life-expectancy-deaths/deaths-in-australia/contents/covid-10-deaths">COVID</a>. But the picture is less clear with other infections such as the flu, where the incidence and mortality between men and women <a href="https://iris.who.int/bitstream/handle/10665/44401/9789241500111_eng.pdf?sequence=1&amp;isAllowed=y">varies widely</a> between countries and particular flu subtypes and outbreaks.</p> <p>Infection rates and outcomes in men and women can also depend on the way a virus is <a href="https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2021.712688/full">transmitted</a>, the person’s age, and social and behavioural factors.</p> <p>For instance, women seem to be more likely to <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8077589/#R20">practice protective behaviours</a> such as washing their hands, wearing masks or avoiding crowded indoor spaces. Women are also <a href="https://bmcprimcare.biomedcentral.com/articles/10.1186/s12875-016-0440-0">more likely</a> to seek medical care when ill.</p> <h2>So men aren’t faking it?</h2> <p>Some evidence suggests men are not over-reporting symptoms, and may take longer to clear an infection. So they may experience man flu more harshly than women with a cold.</p> <p>So cut the men in your life some slack. If they are sick, gender stereotyping is unhelpful, and may discourage men from seeking medical advice.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/231161/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/thea-van-de-mortel-1134101">Thea van de Mortel</a>, Professor, Nursing, School of Nursing and Midwifery, <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/whats-the-difference-between-man-flu-and-flu-hint-men-may-not-be-exaggerating-231161">original article</a>.</em></p>

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Pioneering TV presenter reveals terminal diagnosis live on air

<p>Popular New Zealand TV presenter Joanna Paul-Robie has revealed she is dying of cancer. The pioneering presenter, known for her work on TV3, shared the heartbreaking news during an interview with Radio New Zealand on Friday morning.</p> <p>Paul-Robie, who has been a beloved figure in the broadcasting world, made the announcement while accepting the Icon Award for her contributions to the creative industries.</p> <p>“I was so touched because this award means so much to me, coming from Tauranga Moana,” she said. “But more importantly, because I am, unfortunately, dying – I have terminal cancer – and really to have this award before one posthumously gets it is an even better break. I can’t tell you the lightness, the brightness, the feeling of aroha inside me last night.”</p> <p>Reflecting on her career, Paul-Robie recounted her experiences as one of the few Māori individuals on New Zealand's television screens. “The newsroom was really … it was being run by mostly a pair of middle-class, middle-aged white men who had the audacity and the balls to say ‘If it bleeds, it leads’ but these guys you know they had never been in a Māori world,” she remarked.</p> <p>Starting her career at Radio New Zealand, Paul-Robie later became a newsreader for TV3 and played a significant role in establishing Māori Television in 2004, serving as a program and production manager.</p> <p>During a 2011 interview with <em>NZOnScreen</em>, she spoke about the challenges and triumphs of setting up the network. “There’s been a handful of people in the world who have built a television station and taken it to air,” she said. “There are only a handful of people in the world who can do that and even though it nearly broke me in half on the day that we launched, I thought ‘hell we did that’. I think it is difficult for someone like me with an A-type personality to think now you have done your big thing maybe you should take it easy now.”</p> <p>Paul-Robie's courage and dedication have left an indelible mark on New Zealand's broadcasting landscape. Her announcement has been met with an outpouring of support and love from colleagues, fans and the wider community, who admire her strength and resilience in the face of such a personal battle.</p> <p><em>Images: <span style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;">NZOnScreen</span></em></p>

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Are some routes more prone to air turbulence? Will climate change make it worse? Your questions answered

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/doug-drury-1277871">Doug Drury</a>, <a href="https://theconversation.com/institutions/cquniversity-australia-2140">CQUniversity Australia</a></em></p> <p>A little bit of turbulence is a common experience for air travellers. Severe incidents are rare – but when they occur they can be deadly.</p> <p>The recent Singapore Airlines flight SQ321 from London to Singapore shows the danger. An <a href="https://apnews.com/article/singapore-airlines-flight-turbulence-5a9a268e1a6a6fb9ece7e58b5ea9231b">encounter with extreme turbulence</a> during normal flight left one person dead from a presumed heart attack and several others badly injured. The flight diverted to land in Bangkok so the severely injured passengers could receive hospital treatment.</p> <p>Air turbulence can happen anywhere, but is far more common on some routes than on others.</p> <p>Climate change is expected to boost the chances of air turbulence, and make it more intense. In fact, <a href="https://www.nature.com/articles/s41586-019-1465-z">some research</a> indicates turbulence <a href="https://theconversation.com/aviation-turbulence-soared-by-up-to-55-as-the-world-warmed-new-research-207574">has already worsened</a> over the past few decades.</p> <h2>Where does turbulence happen?</h2> <p>Nearly every flight experiences turbulence in one form or another.</p> <p>If an aircraft is taking off or landing behind another aircraft, the wind generated by the engine and <a href="https://www.faa.gov/air_traffic/publications/atpubs/aim_html/chap7_section_4.html">wingtips</a> of the lead aircraft can cause “wake turbulence” for the one behind.</p> <p>Close to ground level, there may be turbulence due to strong winds associated with weather patterns moving through the area near an airport. At higher altitudes, there may be wake turbulence again (if flying close to another aircraft), or turbulence due to updraughts or downdraughts from a thunderstorm.</p> <p>Another kind of turbulence that occurs at higher altitudes is harder to predict or avoid. So-called “<a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023gl103814">clear-air turbulence</a>” is invisible, as the name suggests. It is often caused by warmer air rising into cooler air, and is generally expected to get worse due to climate change.</p> <p>At the most basic level turbulence is the result of two or more wind events colliding and creating eddies, or swirls of <a href="https://www.nationalgeographic.com/travel/article/what-is-turbulence-explained">disrupted airflow</a>.</p> <p>It often occurs near mountain ranges, as wind flowing over the terrain accelerates upward.</p> <p>Turbulence also often occurs at the edges of the <a href="https://www.nationalgeographic.com/travel/article/what-is-turbulence-explained">jet streams</a>. These are narrow bands of strong, high-altitude winds circling the globe. Aircraft often travel in the jet streams to get a speed boost – but when entering or leaving the jet stream, there may be some turbulence as it crosses the boundary with the slower winds outside.</p> <h2>What are the most turbulent routes?</h2> <p>It is possible to <a href="https://turbli.com/maps/world-turbulence-map/">map turbulence patterns</a> over the whole world. Airlines use these maps to plan in advance for alternate airports or other essential contingencies.</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/595676/original/file-20240522-21-ippmyt.png?ixlib=rb-4.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/595676/original/file-20240522-21-ippmyt.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/595676/original/file-20240522-21-ippmyt.png?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=430&fit=crop&dpr=1 600w, https://images.theconversation.com/files/595676/original/file-20240522-21-ippmyt.png?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=430&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/595676/original/file-20240522-21-ippmyt.png?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=430&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/595676/original/file-20240522-21-ippmyt.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=541&fit=crop&dpr=1 754w, https://images.theconversation.com/files/595676/original/file-20240522-21-ippmyt.png?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=541&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/595676/original/file-20240522-21-ippmyt.png?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=541&fit=crop&dpr=3 2262w" alt="Map showing air turbulence." /></a><figcaption><span class="caption">A map of estimated clear-air turbulence around the world, current as of 3:00PM AEST (0500 UTC) on May 22 2024.</span> <span class="attribution"><a class="source" href="https://turbli.com/maps/world-turbulence-map/">Turbli</a></span></figcaption></figure> <p>While turbulence changes with weather conditions, some regions and routes are more prone to it than others. As you can see from the list below, the majority of the most turbulent routes travel close to mountains.</p> <p><iframe id="EktuH" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/EktuH/2/" width="100%" height="400px" frameborder="0"></iframe></p> <p>In Australia, the <a href="https://turbli.com/historical-data/most-turbulent-flight-routes-of-2023/">highest average turbulence in 2023</a> occurred on the Brisbane to Sydney route, followed by Melbourne to Sydney and Brisbane to Melbourne.</p> <h2>Climate change may increase turbulence</h2> <p>How will climate change affect the future of aviation?</p> <p>A <a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023GL103814">study published last year</a> found evidence of large increases in clear-air turbulence between 1979 and 2020. In some locations severe turbulence increased by as much as 55%.</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/595683/original/file-20240522-17-p2zdrt.png?ixlib=rb-4.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/595683/original/file-20240522-17-p2zdrt.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/595683/original/file-20240522-17-p2zdrt.png?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=253&fit=crop&dpr=1 600w, https://images.theconversation.com/files/595683/original/file-20240522-17-p2zdrt.png?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=253&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/595683/original/file-20240522-17-p2zdrt.png?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=253&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/595683/original/file-20240522-17-p2zdrt.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=318&fit=crop&dpr=1 754w, https://images.theconversation.com/files/595683/original/file-20240522-17-p2zdrt.png?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=318&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/595683/original/file-20240522-17-p2zdrt.png?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=318&fit=crop&dpr=3 2262w" alt="A map of the world with different areas shaded in red." /></a><figcaption><span class="caption">A map showing changes in the chance of clear-air turbulence across the globe between 1979 and 2020. Darker red indicates a higher chance of turbulence.</span> <span class="attribution"><a class="source" href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023GL103814">Prosser et al. (2023), Geophysical Research Letters</a></span></figcaption></figure> <p>In 2017, a <a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1002/2017GL074618">different study used climate modelling</a> to project that clear-air turbulence may be four times as common as it used to be by 2050, under some climate change scenarios.</p> <h2>What can be done about turbulence?</h2> <p>What can be done to mitigate turbulence? <a href="https://safetyfirst.airbus.com/optimum-use-of-weather-radar/">Technology to detect turbulence</a> is still in the research and development phase, so pilots use the knowledge they have from weather radar to determine the best plan to avoid weather patterns with high levels of moisture directly ahead of their flight path.</p> <p>Weather radar imagery shows the pilots where the most intense turbulence can be expected, and they work with air traffic control to avoid those areas. When turbulence is encountered unexpectedly, the pilots immediately turn on the “fasten seatbelt” sign and reduce engine thrust to slow down the plane. They will also be in touch with air traffic control to find better conditions either by climbing or descending to smoother air.</p> <p>Ground-based meteorological centres can see weather patterns developing with the assistance of satellites. They provide this information to flight crews in real time, so the crew knows the weather to expect throughout their flight. This can also include areas of expected turbulence if storms develop along the intended flight route.</p> <p>It seems we are heading into more turbulent times. Airlines will do all they can to reduce the impact on planes and passengers. But for the average traveller, the message is simple: when they tell you to fasten your seatbelt, you should listen.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/230666/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><a href="https://theconversation.com/profiles/doug-drury-1277871"><em>Doug Drury</em></a><em>, Professor/Head of Aviation, <a href="https://theconversation.com/institutions/cquniversity-australia-2140">CQUniversity Australia</a></em></p> <p><em>Image credits: Shutterstock</em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/are-some-routes-more-prone-to-air-turbulence-will-climate-change-make-it-worse-your-questions-answered-230666">original article</a>.</em></p> </div>

Travel Trouble

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Air travel exposes you to radiation – how much health risk comes with it?

<p><em><a href="https://theconversation.com/profiles/timothy-j-jorgensen-239253">Timothy J. Jorgensen</a>, <a href="https://theconversation.com/institutions/georgetown-university-1239">Georgetown University</a></em></p> <p>In 2017, <a href="http://www.independent.ie/business/world/18-million-miles-and-counting-the-globes-top-business-traveller-35666790.html">business traveler Tom Stuker</a> was hailed as the world’s most frequent flyer, logging 18,000,000 miles of air travel on United Airlines over 14 years.</p> <p>That’s a lot of time up in the air. If Stuker’s traveling behaviors are typical of other business flyers, he may have eaten 6,500 <a href="http://www.airliners.net/forum/viewtopic.php?t=689041">inflight meals</a>, drunk 5,250 <a href="https://doi.org/10.1111/j.1708-8305.2009.00339.x">alcoholic beverages</a>, watched thousands of <a href="http://www.iata.org/publications/store/Pages/global-passenger-survey.aspx">inflight movies</a> and made around 10,000 visits to <a href="http://blog.thetravelinsider.info/2012/11/how-many-restrooms-are-enough-on-a-plane.html">airplane toilets</a>.</p> <p>He would also have accumulated a radiation dose equivalent to about 1,000 <a href="https://www.radiologyinfo.org/en/info.cfm?pg=safety-xray">chest x-rays</a>. But what kind of health risk does all that radiation actually pose?</p> <h2>Cosmic rays coming at you</h2> <p>You might guess that a frequent flyer’s radiation dose is coming from the airport security checkpoints, with their whole-body scanners and baggage x-ray machines, but you’d be wrong. The <a href="http://www.aapm.org/publicgeneral/AirportScannersPressRelease.asp">radiation doses to passengers from these security procedures</a> are trivial.</p> <p>The major source of radiation exposure from air travel comes from the flight itself. This is because at high altitude the <a href="http://www.altitude.org/why_less_oxygen.php">air gets thinner</a>. The farther you go from the Earth’s surface, the fewer molecules of gas there are per volume of space. Thinner air thus means fewer molecules to deflect incoming <a href="http://www.space.com/32644-cosmic-rays.html">cosmic rays</a> – radiation from outer space. With less <a href="http://www.bbc.co.uk/science/earth/atmosphere_and_climate/atmosphere">atmospheric shielding</a>, there is more exposure to radiation.</p> <p>The most extreme situation is for astronauts who travel entirely outside of the Earth’s atmosphere and enjoy none of its protective shielding. Consequently, they receive high radiation doses. In fact, it is the accumulation of radiation dose that is the limiting factor for the maximum length of manned space flights. Too long in space and <a href="https://www.nasa.gov/hrp/bodyinspace">astronauts risk cataracts, cancer and potential heart ailments</a> when they get back home.</p> <p>Indeed, it’s the radiation dose problem that is a major spoiler for <a href="http://www.space.com/34210-elon-musk-unveils-spacex-mars-colony-ship.html">Elon Musk’s goal of inhabiting Mars</a>. An extended stay on Mars, with its <a href="http://www.space.com/16903-mars-atmosphere-climate-weather.html">extremely thin atmosphere</a>, would be lethal due to the high radiation doses, notwithstanding Matt Damon’s successful Mars colonization in the movie <a href="https://www.youtube.com/watch?v=ej3ioOneTy8">“The Martian</a>.”</p> <h2>Radiation risks of ultra frequent flying</h2> <p>What would be Stuker’s cumulative radiation dose and what are his health risks?</p> <p>It depends entirely on how much time he has spent in the air. Assuming an <a href="http://hypertextbook.com/facts/2002/JobyJosekutty.shtml">average flight speed</a> (550 mph), Stuker’s 18,000,000 miles would translate into 32,727 hours (3.7 years) of flight time. The radiation dose rate at typical <a href="http://www.telegraph.co.uk/travel/travel-truths/why-do-planes-fly-so-high-feet/">commercial airline flight altitude</a> (35,000 feet) is about <a href="https://hps.org/publicinformation/ate/faqs/commercialflights.html">0.003 millisieverts per hour</a>. (As I explain in my book <a href="http://press.princeton.edu/titles/10691.html">“Strange Glow: The Story of Radiation</a>,” a millisievert or mSv is a unit of radiation dose that can be used to estimate cancer risk.) By multiplying the dose rate by the hours of flight time, we can see that Stuker has earned himself about 100 mSv of radiation dose, in addition to a lot of free airline tickets. But what does that mean for his health?</p> <p>The primary health threat at this dose level is an increased risk of some type of cancer later in life. Studies of atomic bomb victims, nuclear workers and medical radiation patients have <a href="https://doi.org/10.17226/11340">allowed scientists to estimate the cancer risk</a> for any particular radiation dose.</p> <p>All else being equal and assuming that low doses have risk levels proportionate to high doses, then an overall cancer risk rate of <a href="http://www.imagewisely.org/imaging-modalities/computed-tomography/medical-physicists/articles/how-to-understand-and-communicate-radiation-risk">0.005 percent per mSv</a> is a reasonable and commonly used estimate. Thus, Stuker’s 100-mSv dose would increase his lifetime risk of contracting a potentially fatal cancer by about 0.5 percent.</p> <h2>Contextualizing the risk</h2> <p>The question then becomes whether that’s a high level of risk. Your own feeling might depend on how you see your background cancer risk.</p> <p>Most people <a href="http://www.who.int/whr/2002/chapter3/en/index4.html">underestimate their personal risk of dying from cancer</a>. Although the exact number is debatable, it’s fair to say that <a href="https://www.cancer.org/cancer/cancer-basics/lifetime-probability-of-developing-or-dying-from-cancer.html">about 25 percent of men ultimately contract a potentially fatal cancer</a>. Stuker’s 0.5 percent cancer risk from radiation should be added to his baseline risk – so it would go from 25 percent to 25.5 percent. A cancer risk increase of that size is too small to actually measure in any scientific way, so it must remain a theoretical increase in risk.</p> <p>A 0.5 percent increase in risk is the same as one chance in 200 of getting cancer. In other words, if 200 male travelers logged 18,000,000 miles of air travel, like Stuker did, we might expect just one of them to contract a cancer thanks to his flight time. The other 199 travelers would suffer no health effects. So the chances that Stuker is the specific 18-million-mile traveler who would be so unlucky is quite small.</p> <p>Stuker was logging more air hours per year (greater than 2,000) than most pilots typically log (<a href="http://work.chron.com/duty-limitations-faa-pilot-17646.html">under 1,000</a>). So these airline workers would have risk levels proportionately lower than Stuker’s. But what about you?</p> <p>If you want to know your personal cancer risk from flying, estimate all of your commercial airline miles over the years. Assuming that the values and parameters for speed, radiation dose and risk stated above for Stuker are also true for you, dividing your total miles by 3,700,000,000 will give your approximate odds of getting cancer from your flying time.</p> <p>For example, let’s pretend that you have a mathematically convenient 370,000 total flying miles. That would mean 370,000 miles divided by 3,700,000,000, which comes out to be 1/10,000 odds of contracting cancer (or a 0.01 percent increase in risk). Most people do not fly 370,000 miles (equal to 150 flights from Los Angeles to New York) within their lifetimes. So for the average flyer, the increased risk is far less than 0.01 percent.</p> <p>To make your exercise complete, make a list of all the benefits that you’ve derived from your air travel over your lifetime (job opportunities, vacation travel, family visits and so on) and go back and look at your increased cancer risk again. If you think your benefits have been meager compared to your elevated cancer risk, maybe its time to rethink flying. But for many people today, flying is a necessity of life, and the small elevated cancer risk is worth the price.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/78790/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/timothy-j-jorgensen-239253">Timothy J. Jorgensen</a>, Director of the Health Physics and Radiation Protection Graduate Program and Professor of Radiation Medicine, <a href="https://theconversation.com/institutions/georgetown-university-1239">Georgetown University</a></em></p> <p><em>Image credits: Shutterstock</em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/air-travel-exposes-you-to-radiation-how-much-health-risk-comes-with-it-78790">original article</a>.</em></p>

Travel Trouble

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3 common travel illnesses (and how to avoid them)

<p>Nobody wants to fall sick when they’re on holidays but it happens and is actually quite common. Not every travel illness is foreseeable, but the most prevalent ones usually can be managed if you’re prepared and know what to look out for. Here are three of the most common illnesses travellers experience and what you can do to avoid them.</p> <p><strong>Traveller’s diarrhoea</strong></p> <p>It may be an unpleasant topic of conversation, but as diarrhoeais the most common travel sickness, it’s important to be prepared. It is estimated diarrhoeais experienced by almost half of travellers at some point on their holiday, but mainly by those visiting developing countries. It’s contracted by eating or drinking contaminated food and water and in severe cases can last for days.</p> <p><em><span style="text-decoration: underline;">How to avoid it</span>:</em> Stick to bottled or purified water, freshly cooked meals and fruits and vegetables you can peel yourself. Talk to your doctor for antibiotics you can take in case you are struck with traveller’s diarrhoea.</p> <p><strong>Motion sickness</strong></p> <p>Whether it’s by boat, plane, or car, many travellers experience motion sickness. This occurs when your eyes see motion but your body doesn’t register it, leading to a conflict of the senses. It often results in nausea, vomiting, headaches, and sweating.</p> <p><em><span style="text-decoration: underline;">How to avoid it</span>:</em> If flying, try to sit near the wings of plane. If cruising, get an outside cabin in the middle of ship, and if in a car, sit up front. Don’t play with your devices, as looking at a small screens often exacerbates the problem; instead try to look far to the horizon. Have a light meal before travelling and avoid spicy, greasy or rich foods. You can talk to your doctor about over-the-counter medication that can help motion sickness as well.  </p> <p><strong>Bug bites</strong></p> <p>There are all sorts of infectious diseases like malaria, dengue, chikungunya and yellow fever you can pick up from bug bites, especially in developing nations. While you should always talk to your doctor about the types of vaccines you need to take for your travel destination, it is always advisable to protect against insect bites.</p> <p><em><span style="text-decoration: underline;">How to avoid it</span>:</em> Apply insect repellent, wear long sleeves and pants where possible and try to avoid outside activity around dust and dawn when mosquitos are active. If sleeping outdoors, it is advisable to use curtain nettings.</p> <p><em>Image credits: Getty Images </em></p>

Travel Tips

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Love is in the air! Pilot proposes to flight attendant girlfriend before take off

<p>A pilot has proposed to his flight attendant girlfriend just minutes before take off in a heart-warming display of love. </p> <p>Polish pilot Konrad Hanc was captured emerging from the cockpit before embarking on a flight to Kraków to make a surprising announcement over the PA system. </p> <p>Hanc introduced himself to the passengers before explaining the real reason for his message. </p> <p>“On today’s flight there is a very special person," he began.</p> <p>“Ladies and gentlemen, about one and a half years ago in this job I met the most wonderful person that completely changed my life."</p> <p>“You are most precious to me. You are my greatest dream come true. This is why I have to ask you a favour, honey."</p> <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-permalink="https://www.instagram.com/reel/C6EHHyQskLc/?utm_source=ig_embed&amp;utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/reel/C6EHHyQskLc/?utm_source=ig_embed&amp;utm_campaign=loading" target="_blank" rel="noopener">A post shared by LOT Polish Airlines (@flylot)</a></p> </div> </blockquote> <p>“Will you marry me?” he asked while getting down on one knee, as another flight attendant handed him a bouquet of flowers. </p> <p>His girlfriend, Paula, sprinted up the aisle of the plane before leaping into the arms of her future husband. </p> <p>Passengers watched on in anticipation for her answer with one yelling, “Did she say yes?” to which the beaming captain responded: “She said yes!”</p> <p>Hanc explained that he chose to pop the question on the flight to the Polish city as he met Paula on the same flight just 18 months ago. </p> <p>As the pair embraced in a hug and kiss, passengers erupted in applause, with many taking to the now viral Facebook post to send them well wishes. </p> <p>“I love this! Sweet couple!” one person wrote.</p> <p>”TOTALLYYYYY LOVE IN THE AIR,” another enthusiastic person commented, to which the airline responded: “YES, love IS in the air!”</p> <p><em>Image credits: LOT Polish Airlines</em></p>

Relationships

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“Love is so sweet": Man's sweet mid-air proposal goes viral

<p>Love is in the air! </p> <p>A smitten passenger took his love to the skies and proposed to his girlfriend while on board an Air Peace flight, with the romantic moment captured on camera. </p> <p>A social media user took to TikTok to share the sweet proposal, with the caption: “POV: My friend was proposed to in a plane.”</p> <p>The minute-long video showed a man getting out of his seat on board the packed plane to use the aircraft’s PA system so that he could ask for his girlfriend’s hand in marriage.</p> <p>“She’s so precious and her name is Precious,” the man said before popping the question. </p> <p> “Please, my Precious, I want to ask, will you marry me?”</p> <p>“If you will, just come out and say ‘yes’ to me, my precious,” he added before walking down the aisle of the aircraft. </p> <p>Other passengers cheered for the couple, and in a second video, the man is seen greeting Precious, then getting down on one knee to offer her the ring.</p> <p>Precious was overjoyed at the proposal and said yes, hugging her new fiance. </p> <p>While it is unclear where the plane was travelling, Air Peace is a Nigerian carrier that operates flights to destinations in West Africa and the Middle East, according to the NY Post. </p> <p>TikTok users were also touched by the romantic act, with many of them congratulating the couple. </p> <p>“This is beautiful,” one wrote. </p> <p>“Love is so sweet for real,” another swooned. </p> <p><em>Images: TikTok</em></p>

Relationships

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Here’s why having chocolate can make you feel great or a bit sick – plus 4 tips for better eating

<p><em><a href="https://theconversation.com/profiles/saman-khalesi-366871">Saman Khalesi</a>, <a href="https://theconversation.com/institutions/cquniversity-australia-2140">CQUniversity Australia</a></em></p> <p>Australians are <a href="https://www.retail.org.au/media/sweet-spending-boon-predicted-for-easter-retail">predicted</a> to spend around A$1.7 billion on chocolates, hot cross buns and other special foods this Easter season.</p> <p>Chocolate has a long history of production and consumption. It is made from cacao beans that go through processes including fermentation, drying, roasting and grounding. What is left is a rich and fatty liquor that is pressed to remove the fat (cocoa butter) and the cacao (or “cocoa”) powder which will then be mixed with different ingredients to produce dark, milk, white and other types of chocolates.</p> <p>There are several health benefits and potential problems that come in these sweet chocolatey packages.</p> <h2>The good news</h2> <p>Cacao beans contain <a href="https://foodstruct.com/food/cocoa-bean">minerals</a> like iron, potassium, magnesium, zinc and phosphorus and some vitamins. They are also rich in beneficial chemicals called <a href="https://pubmed.ncbi.nlm.nih.gov/23150750/">polyphenols</a>.</p> <p>These are great antioxidants, with the potential to <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5465250/">improve heart health</a>, increase <a href="https://pubmed.ncbi.nlm.nih.gov/25164923/">nitric oxide</a> (which dilates blood vessels) and <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3488419/">reduce blood pressure</a>, provide food for gut microbiota and <a href="https://www.mdpi.com/2072-6643/12/7/1908">promote gut health</a>, boost the <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5465250/">immune system</a> and reduce inflammation.</p> <p>However, the concentration of polyphenols in the chocolate we eat depends largely on the cocoa solid amounts used in the final product.</p> <p>In general terms, the darker the chocolate, the more cocoa solids, minerals and polyphenols it has. For example, dark chocolates may have around <a href="https://www.tandfonline.com/doi/full/10.1080/10942912.2011.614984">seven times more polyphenols</a> compared to white chocolates and <a href="https://www.tandfonline.com/doi/full/10.1080/10942912.2011.614984">three times more polyphenols</a> compared to milk chocolates.</p> <h2>But also some bad news</h2> <p>Unfortunately, the <a href="https://theconversation.com/treat-or-treatment-chocolate-is-good-but-cocoa-is-better-for-your-heart-3084">health benefits of cocoa solids</a> are easily offset by the high sugar and fat content of modern-day chocolates. For example, milk and white chocolate eggs are on average 50% sugar, 40% fat (mostly saturated fats) – which means a lot of added kilojoules (calories).</p> <p>Also, there may be some side effects that come with ingesting chocolate.</p> <p>Cocoa beans include a compound called theobromine. While it has the anti-inflammatory properties responsible for some of the health benefits of chocolate, it is also a mild brain stimulant that acts in a similar way to caffeine. The mood boost it offers may also be partly responsible for how much we <a href="https://www.frontiersin.org/articles/10.3389/fphar.2015.00030/full?crsi=662496658&amp;cicada_org_src=healthwebmagazine.com&amp;cicada_org_mdm=direct">like chocolate</a>. Dark chocolate has higher theobromine compared to milk and white chocolate.</p> <p>But accordingly, overindulging in chocolate (and therefore theobromine) may lead to feeling restless, <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3672386/">headaches</a> and nausea.</p> <h2>What else is in your chocolate?</h2> <p>Milk and dairy-based chocolates may also cause stomach upset, abdominal pain and bloating in people with <a href="https://dietitiansaustralia.org.au/health-advice/lactose-intolerance">lactose intolerance</a>. This happens when we don’t produce enough lactase enzymes to digest milk sugar (lactose).</p> <p>People with lactose intolerance can usually tolerate up to 6 grams of lactose without showing symptoms. Milk chocolate can have around <a href="https://www.ncbi.nlm.nih.gov/books/NBK310258/">3 grams of lactose</a> per 40 grams (the size of a standard chocolate bar). So two chocolate bars (or the equivalent in milk chocolate eggs or bunnies) may be enough to cause symptoms.</p> <p>It’s worth noting that lactase enzyme activity dramatically declines as we age, with the highest activity in newborns and children. So lactose sensitivity or intolerance may not be such an issue for your kids and your symptoms may increase over time. Genetics also plays a major role in how sensitive people are to lactose.</p> <p><a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6815241/">Allergic reactions</a> to chocolate are usually due to the added ingredients or cross-contamination with potential allergens such as nuts, milk, soy, and some sweeteners used in the production of chocolate.</p> <p>Symptoms can be mild (acne, rashes and stomach pain) or more severe (swelling of the throat and tongue and shortness of breath).</p> <p>If you or your family members have known allergic reactions, make sure you read the label before indulging – especially in a whole block or basket of the stuff. And if you or your family members do experience symptoms of an allergic reaction after eating chocolate, <a href="https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/allergic-reactions-emergency-first-aid">seek medical attention</a> immediately.</p> <h2>4 take home tips</h2> <p>So, if you are like me and have a weakness for chocolate there are a few things you can do to make the experience a good one.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/202848/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <ol> <li>keep an eye out for the darker chocolate varieties with higher cocoa solids. You may notice a percentage on labelling, which refers to how much of its weight is from cocoa beans. In general, the higher this percentage, the lower the sugar. White chocolate has almost no cocoa solid, and mostly cocoa butter, sugar and other ingredients. Dark chocolate has 50–100% cocoa beans, and less sugar. Aim for at least 70% cocoa</li> <li>read the fine print for additives and possible cross-contamination, especially if allergies might be an issue</li> <li>the ingredients list and nutrition information panel should tell you all about the chocolate you choosing. Go for varieties with lower sugar and less saturated fat. Nuts, seeds and dried fruits are better ingredients to have in your chocolate than sugar, creme, syrup, and caramel</li> <li>finally, treat yourself – but keep the amount you have within sensible limits!</li> </ol> <p><em><a href="https://theconversation.com/profiles/saman-khalesi-366871">Saman Khalesi</a>, Postdoctoral Fellow of the National Heart Foundation &amp; Senior Lecturer and Discipline Lead in Nutrition, School of Health, Medical and Applied Sciences, <a href="https://theconversation.com/institutions/cquniversity-australia-2140">CQUniversity Australia</a></em></p> <p><em>Image credits: Getty Images</em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/heres-why-having-chocolate-can-make-you-feel-great-or-a-bit-sick-plus-4-tips-for-better-eating-202848">original article</a>.</em></p>

Food & Wine

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Longing for the ‘golden age’ of air travel? Be careful what you wish for

<p><em><a href="https://theconversation.com/profiles/janet-bednarek-144872">Janet Bednarek</a>, <a href="https://theconversation.com/institutions/university-of-dayton-1726">University of Dayton</a></em></p> <p>Long lines at security checkpoints, tiny plastic cups of soda, small bags of pretzels, planes filled to capacity, fees attached to every amenity – all reflect the realities of 21st century commercial air travel. It’s no wonder that many travelers have become nostalgic for the so-called “golden age” of air travel in the United States.</p> <p>During the 1950s, airlines promoted commercial air travel as glamorous: stewardesses served full meals on real china, airline seats were large (and frequently empty) with ample leg-room, and passengers always dressed well.</p> <p>After jets were introduced in the late 1950s, passengers could travel to even the most distant locations at speeds unimaginable a mere decade before. An airline trip from New York to London that could take up to 15 hours in the early 1950s could be made in less than seven hours by the early 1960s.</p> <p>But airline nostalgia can be tricky, and “golden ages” are seldom as idyllic as they seem.</p> <p>Until the introduction of jets in 1958, most of the nation’s commercial planes were propeller-driven aircraft, like the DC-4. Most of these planes were unpressurized, and with a maximum cruising altitude of 10,000 to 12,000 feet, they were unable to fly over bad weather. Delays were frequent, turbulence common, and air sickness bags often needed.</p> <p>Some planes were spacious and pressurized: the <a href="http://everythingnice.org/wp-content/uploads/2009/07/PanAm-cutawayS.jpg">Boeing Stratocruiser</a>, for example, could seat 50 first class passengers or 81 coach passengers compared to the DC-3’s 21 passengers. It could cruise at 32,000 feet, which allowed Stratocruiser to fly above most bad weather it encountered. But only 56 of these planes were ever in service.</p> <p>While the later DC-6 and DC-7 were pressurized, they still flew much lower than the soon-to-appear jets – 20,000 feet compared to 30,000 feet – and often encountered turbulence. The piston engines were bulky, complex and difficult to maintain, which contributed to frequent delays.</p> <p>For much of this period, the old saying “Time to spare, go by air” still rang true.</p> <p>Through the 1930s and into the 1940s, almost everyone flew first class. Airlines did encourage more people to fly in the 1950s and 1960s by introducing coach or tourist fares, but the savings were relative: less expensive than first class, but still pricey. In 1955, for example, so-called “bargain fares” from New York to Paris were the equivalent of just over $2,600 in 2014 dollars. Although the advent of jets did result in lower fares, the cost was still out of reach of most Americans. The most likely frequent flier was a white, male businessman traveling on his company’s expense account, and in the 1960s, airlines – with young attractive stewardesses in short skirts – clearly catered to their most frequent flyers.</p> <p>The demographics of travelers did begin to shift during this period. More women, more young people, and retirees began to fly; still, airline travel remained financially out-of-reach for most.</p> <p>If it was a golden age, it only was for the very few.</p> <figure><iframe src="https://www.youtube.com/embed/bKqQgNZylLw?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe><figcaption><span class="caption">Jet planes were introduced in the late 1950s, resulting in shorter flight times. But their ticket prices out of reach for the average traveler.</span></figcaption></figure> <p>People also forget that well into the 1960s, air travel was far more dangerous than it is today. In the 1950s and 1960s US airlines experienced at least a half dozen crashes per year – most leading to fatalities of all on board. People today may bemoan the crowded airplanes and lack of on-board amenities, but the number of fatalities per million miles flown has dropped dramatically since since the late 1970s, especially compared to the 1960s. Through at least the 1970s, airports even prominently featured kiosks selling flight insurance.</p> <p>And we can’t forget hijackings. By the mid-1960s so many airplanes had been hijacked that <a href="http://www.latinamericanstudies.org/hijackers/flying-high.htm">“Take me to Cuba”</a> became a punch line for stand-up comics. In 1971 <a href="http://nymag.com/news/features/39593/index2.html">D.B. Cooper</a> – a hijacker who parachuted from a Boeing 727 after extorting $200,000 – might have been able to achieve folk hero status. But one reason US airline passengers today (generally) tolerate security checkpoints is that they want some kind of assurance that their aircraft will remain safe.</p> <p>And if the previous examples don’t dull the sheen of air travel’s “golden age,” remember: in-flight smoking was both permitted and encouraged.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/34177/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><a href="https://theconversation.com/profiles/janet-bednarek-144872"><em>Janet Bednarek</em></a><em>, Professor of History, <a href="https://theconversation.com/institutions/university-of-dayton-1726">University of Dayton</a></em></p> <p><em>Image credits: Getty Images </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/longing-for-the-golden-age-of-air-travel-be-careful-what-you-wish-for-34177">original article</a>.</em></p>

Travel Trouble

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Altitude sickness is typically mild but can sometimes turn very serious − a high-altitude medicine physician explains how to safely prepare

<p><em><a href="https://theconversation.com/profiles/brian-strickland-1506270">Brian Strickland</a>, <a href="https://theconversation.com/institutions/university-of-colorado-anschutz-medical-campus-4838">University of Colorado Anschutz Medical Campus</a></em></p> <p>Equipped with the latest gear and a thirst for adventure, mountaineers embrace the perils that come with conquering the world’s highest peaks. Yet, even those who tread more cautiously at high altitude are not immune from the health hazards waiting in the thin air above.</p> <p>Altitude sickness, which most commonly refers to <a href="https://medlineplus.gov/ency/article/000133.htm">acute mountain sickness</a>, <a href="https://doi.org/10.1016/j.pcad.2010.02.003">presents a significant challenge</a> to those traveling to and adventuring in high-altitude destinations. Its symptoms can range from <a href="https://doi.org/10.1089/ham.2017.0164">mildly annoying to incapacitating</a> and, in some cases, may progress to more <a href="https://doi.org/10.1183/16000617.0096-2016">life-threatening illnesses</a>.</p> <p>While <a href="https://doi.org/10.18111/9789284424023">interest in high-altitude tourism is rapidly growing</a>, general awareness and understanding about the hazards of visiting these locations <a href="https://doi.org/10.1089/ham.2022.0083">remains low</a>. The more travelers know, the better they can prepare for and enjoy their journey.</p> <p>As an <a href="https://som.cuanschutz.edu/Profiles/Faculty/Profile/36740">emergency physician specializing in high-altitude illnesses</a>, I work to improve health care in remote and mountainous locations around the world. I’m invested in finding ways to allow people from all backgrounds to experience the magic of the mountains in an enjoyable and meaningful way.</p> <h2>The science behind altitude sickness</h2> <p>Altitude sickness is rare in locations lower than 8,200 feet (2,500 meters); however, <a href="https://www.ncbi.nlm.nih.gov/books/NBK430716/">it becomes very common</a> when ascending above this elevation. In fact, it affects about <a href="https://wwwnc.cdc.gov/travel/yellowbook/2024/environmental-hazards-risks/high-elevation-travel-and-altitude-illness">25% of visitors to the mountains of Colorado</a>, where I conduct most of my research.</p> <p>The risk rapidly increases with higher ascents. Above 9,800 feet (3,000 meters), up to <a href="https://www.ncbi.nlm.nih.gov/books/NBK430716/">75% of travelers</a> may develop symptoms. Symptoms of altitude sickness are usually mild and consist of <a href="https://doi.org/10.1089/ham.2017.0164">headache, dizziness, nausea, fatigue and insomnia</a>. They usually <a href="https://doi.org/10.1016/j.rceng.2019.12.009">resolve after one to two days</a>, as long as travelers stop their ascent, and the symptoms quickly resolve with descent.</p> <p>When travelers do not properly acclimatize, they can be susceptible to life-threatening altitude illnesses, such as <a href="https://doi.org/10.1016/j.resp.2007.05.002">high-altitude pulmonary edema</a> or <a href="https://doi.org/10.1089/1527029041352054">high-altitude cerebral edema</a>. These conditions are characterized by fluid accumulation within the tissues of the lungs and brain, respectively, and are the <a href="https://wwwnc.cdc.gov/travel/yellowbook/2024/environmental-hazards-risks/high-elevation-travel-and-altitude-illness">most severe forms of altitude sickness</a>.</p> <p>Altitude sickness symptoms are thought to be caused by <a href="https://doi.org/10.1093%2Fbjaceaccp%2Fmks047">increased pressure surrounding the brain</a>, which results from the failure of the body to acclimatize to higher elevations.</p> <p>As people enter into an environment with lower air pressure and, therefore, <a href="https://doi.org/10.1001/jamanetworkopen.2023.18036">lower oxygen content</a>, their <a href="https://doi.org/10.1093%2Fbjaceaccp%2Fmks047">breathing rate increases</a> in order to compensate. This causes an increase in the amount of <a href="https://doi.org/10.1016/s1357-2725(03)00050-5">oxygen in the blood as well as decreased CO₂ levels</a>, which then increases blood pH. As a result, the <a href="https://doi.org/10.1093%2Fbjaceaccp%2Fmks047">kidneys compensate</a> by removing a chemical called bicarbonate from the blood into the urine. This process makes people urinate more and helps correct the acid and alkaline content of the blood to a more normal level.</p> <figure><iframe src="https://www.youtube.com/embed/iv1vQPIdX_k?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe><figcaption><span class="caption">Tips for preventing or reducing the risk of altitude sickness.</span></figcaption></figure> <h2>The importance of gradual ascent</h2> <p>High-altitude medicine experts and other physicians <a href="https://doi.org/10.1016/s0140-6736(76)91677-9">have known for decades</a> that <a href="https://doi.org/10.1089/ham.2010.1006">taking time to slowly ascend is the best way</a> to prevent the development of altitude sickness.</p> <p>This strategy gives the body time to complete its natural physiologic responses to the changes in air pressure and oxygen content. In fact, spending just <a href="https://doi.org/10.1089/ham.2010.1006">one night at a moderate elevation</a>, such as Denver, Colorado, which is at 5,280 feet (1,600 meters), has been shown to <a href="https://doi.org/10.7326/0003-4819-118-8-199304150-00003">significantly reduce the likelihood of developing symptoms</a>.</p> <p>People who skip this step and travel directly to high elevations are <a href="https://doi.org/10.1093/jtm/taad011">up to four times more likely</a> to develop altitude sickness symptoms. When going to elevations greater than 11,000 feet, multiple days of acclimatization are necessary. Experts generally recommend ascending <a href="https://doi.org/10.1089/ham.2010.1006">no more than 1,500 feet per day</a> once the threshold of 8,200 feet of elevation has been crossed.</p> <p>Workers at high altitude, such as <a href="https://doi.org/10.1089/ham.2020.0004">porters in the Nepali Himalaya</a>, are at <a href="https://doi.org/10.1016/j.wem.2018.06.002">particular risk of altitude-related illness</a>. These workers often do not adhere to acclimatization recommendations in order to maximize earnings during tourist seasons; as a result, they are more likely to experience <a href="https://www.cdc.gov/travel/yellowbook/2024/environmental-hazards-risks/high-elevation-travel-and-altitude-illness">severe forms of altitude sickness</a>.</p> <h2>Effective medications</h2> <p>For more than 40 years, <a href="https://doi.org/10.1056/nejm196810172791601">a medicine called acetazolamide</a> has been used to <a href="https://medlineplus.gov/druginfo/meds/a682756.html">prevent the development of altitude sickness</a> and to treat its symptoms. Acetazolamide is <a href="https://www.ncbi.nlm.nih.gov/books/NBK557838/">commonly used as a diuretic</a> and for the <a href="https://www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases/glaucoma">treatment of glaucoma</a>, a condition that causes increased pressure within the eye.</p> <p>If started <a href="https://doi.org/10.1378/chest.09-2445">two days prior</a> to going up to a high elevation, acetazolamide can <a href="https://doi.org/10.1378/chest.09-2445">prevent symptoms of acute illness</a> by speeding up the acclimatization process. Nonetheless, it does not negate the recommendations to ascend slowly, and it is <a href="https://doi.org/10.1016/j.wem.2019.04.006">routinely recommended only</a> when people cannot slowly ascend or for people who have a history of severe altitude sickness symptoms even with slow ascent.</p> <p>Other medications, including ibuprofen, have <a href="https://doi.org/10.1016/j.wem.2012.08.001">shown some effectiveness</a> in treating acute mountain sickness, although <a href="https://doi.org/10.1016/j.amjmed.2018.10.021">not as well as acetazolamide</a>.</p> <p>A <a href="https://pubmed.ncbi.nlm.nih.gov/2028586/">steroid medication called dexamethasone</a> is effective in both treating and preventing symptoms, but it does not improve acclimatization. It is <a href="https://doi.org/10.1016/j.wem.2019.04.006">recommended only when acetazolamide is not effective</a> or cannot be taken.</p> <p>Additionally, it is important to <a href="https://wwwnc.cdc.gov/travel/page/travel-to-high-altitudes">avoid alcohol during the first few days at higher altitudes</a>, as it impairs the body’s ability to acclimatize.</p> <h2>Unproven therapies and remedies are common</h2> <p>As high-altitude tourism becomes increasingly popular, multiple commercial products and remedies have emerged. Most of them are not effective or provide no evidence to suggest they work as advertised. Other options have mixed evidence, making them difficult to recommend.</p> <p>Medications such as <a href="https://doi.org/10.1089/ham.2007.1037">aspirin</a>, <a href="https://doi.org/10.1183/13993003.01355-2017">inhaled steroids</a> and <a href="https://doi.org/10.1089/ham.2011.0007">sildenafil</a> have been proposed as possible preventive agents for altitude sickness, but on the whole they have not been found to be effective.</p> <p><a href="https://doi.org/10.1093/qjmed/hcp026">Supplements and antioxidants have no proven benefit</a> in preventing or treating altitude sickness symptoms. Both normal and high-altitude exercise are popular ways to prepare for high elevations, especially among athletes. However, beyond <a href="https://doi.org/10.1097/jes.0b013e31825eaa33">certain pre-acclimatization strategies</a>, such as brief sojourns to high altitude, <a href="https://doi.org/10.1016/j.tmaid.2013.12.002">physical fitness and training is of little benefit</a>.</p> <p><a href="https://missouripoisoncenter.org/canned-oxygen-is-it-good-for-you">Canned oxygen</a> has also exploded in popularity with travelers. While <a href="https://doi.org/10.1016/0140-6736(90)93240-p">continuously administered medical oxygen</a> in a health care setting can alleviate altitude sickness symptoms, portable oxygen cans <a href="https://doi.org/10.1016/j.wem.2019.04.006">contain very little oxygen gas</a>, casting doubt on their effectiveness.</p> <p>Some high-altitude adventure travelers sleep in <a href="https://doi.org/10.2165/00007256-200131040-00002">specialized tents</a> that simulate increased elevation by lowering the quantity of available oxygen in ambient air. The lower oxygen levels within the tent are thought to accelerate the acclimatization process, but the tents aren’t able to decrease barometric pressure. This is an important part of the high-altitude environment that induces acclimatization. Without modifying ambient air pressure, these <a href="https://doi.org/10.1016/j.wem.2014.04.004">tents may take multiple weeks</a> to be effective.</p> <p>Natural medicines, such as <a href="https://doi.org/10.1580/08-weme-br-247.1">gingko</a> and <a href="https://doi.org/10.1186/s40794-019-0095-7">coca leaves</a>, are touted as natural altitude sickness treatments, but few studies have been done on them. The modest benefits and significant side effects of these options makes their use <a href="https://doi.org/10.1016/j.wem.2019.04.006">difficult to recommend</a>.</p> <p><a href="https://pubmed.ncbi.nlm.nih.gov/8469948/">Staying hydrated</a> is very important at high altitudes due to fluid losses from increased urination, dry air and increased physical exertion. <a href="https://doi.org/10.1186%2Fs12889-018-6252-5">Dehydration symptoms</a> can also mimic those of altitude sickness. But there is <a href="https://doi.org/10.1580/1080-6032(2006)17%5B215:AMSIOF%5D2.0.CO;2">little evidence that consuming excessive amounts of water</a> can prevent or treat altitude sickness.</p> <p>The mountains have something for visitors of all interests and expertise and can offer truly life-changing experiences. While there are health risks associated with travel at higher elevations, these can be lessened by making basic preparations and taking time to slowly ascend.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/222057/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><a href="https://theconversation.com/profiles/brian-strickland-1506270"><em>Brian Strickland</em></a><em>, Senior Instructor in Emergency Medicine, <a href="https://theconversation.com/institutions/university-of-colorado-anschutz-medical-campus-4838">University of Colorado Anschutz Medical Campus</a></em></p> <p><em>Image credits: Getty Images </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/altitude-sickness-is-typically-mild-but-can-sometimes-turn-very-serious-a-high-altitude-medicine-physician-explains-how-to-safely-prepare-222057">original article</a>.</em></p>

Travel Trouble

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From COVID to gastro, why are cruise ships such hotbeds of infection?

<p><em><a href="https://theconversation.com/profiles/thea-van-de-mortel-1134101">Thea van de Mortel</a>, <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a></em></p> <p>Dual outbreaks of <a href="https://www.abc.net.au/news/2023-11-12/grand-princess-ship-adelaide-covid-19-gastroenteritis/103095704">gastro and COVID</a> on the Grand Princess cruise ship that docked in Adelaide on Monday <a href="https://www.theguardian.com/australia-news/2023/nov/13/grand-princess-cruise-ship-covid-gastro-outbreak-docks-adelaide-south-australia">have now been declared over</a> by the <a href="https://www.canberratimes.com.au/story/8421009/cruise-ship-doctor-declares-dual-virus-outbreaks-over/">doctor on board</a>.</p> <p>A spokesperson for Princess Cruises, which operates the ship, said a number of passengers had presented with symptoms <a href="https://www.9news.com.au/national/grand-princess-no-double-covid19-gastro-outbreak-on-ship-cruise-line-says/5d02d423-3289-4a2b-a580-1ed565b78027">on a previous voyage</a>. But the ship has since been disinfected and the number of people who were ill when the ship arrived into Adelaide was said to be in single digits.</p> <p>While this is positive news, reports of infectious outbreaks on cruise ships evoke a sense of deja vu. We probably all remember the high-profile COVID outbreaks that occurred on cruise ships in 2020.</p> <p>So what is it about cruise ships that can make them such hotspots for infection?</p> <h2>First, what causes these outbreaks?</h2> <p>Respiratory infectious outbreaks on cruise ships may be caused by <a href="https://wwwnc.cdc.gov/travel/yellowbook/2024/air-land-sea/cruise-ship-travel">a range of pathogens</a> including SARS-CoV-2 (the virus that causes COVID) and influenza viruses. These can be spread by <a href="https://www.pnas.org/doi/10.1073/pnas.2015482118">respiratory droplets and aerosols</a> released when people breathe, talk, laugh, cough and sneeze.</p> <p>Historically, <a href="https://jmvh.org/article/the-navy-and-the-1918-19-influenza-pandemic/">troop transport ships</a> also helped to spread the lethal 1918 flu virus between continents.</p> <p>Gastro outbreaks on cruise ships are similarly well documented. More than 90% of cruise ship gastro outbreaks are caused by <a href="https://wwwnc.cdc.gov/travel/yellowbook/2024/air-land-sea/cruise-ship-travel#infectious">norovirus</a>, which is spread from person to person, and through contaminated objects or contaminated food or water.</p> <p>Gastro can also be caused by other pathogens such as <a href="https://wwwnc.cdc.gov/travel/yellowbook/2024/air-land-sea/cruise-ship-travel">bacteria in contaminated food or water</a>.</p> <h2>What is the risk?</h2> <p>In 2020, around 19% of <a href="https://www.bmj.com/content/369/bmj.m1632">Diamond Princess</a> passengers and crew docked in Japan tested positive to COVID. Ultimately, nearly one in four <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8739343/">Ruby Princess</a> passengers and crew docked in Sydney tested positive.</p> <p>However, COVID generally presents a lesser risk nowadays, with most people having some level of immunity from vaccination or previous infection. The outbreak on the Grand Princess appears to have been much smaller in scale.</p> <p>A <a href="https://www.sciencedirect.com/science/article/abs/pii/S1477893916300680">three-year study</a> before COVID of influenza-like illness (which includes fever), acute respiratory illness (which <a href="https://www.cdc.gov/flu/about/glossary.htm">doesn’t require fever</a> to be present) and gastro on cruise ships found these were diagnosed in 32.7%, 15.9% and 17% of ill passengers, and 10.9%, 80% and 0.2% of ill crew, respectively.</p> <p>An <a href="https://www.cdc.gov/mmwr/volumes/70/ss/ss7006a1.htm">analysis</a> of data from 252 cruise ships entering American ports showed the overall incidence of acute gastro halved between 2006 and 2019. Passenger cases decreased from 32.5 per 100,000 travel days to 16.9, and crew cases from 13.5 per 100,000 travel days to 5.2. This decline may be due to a <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6382806/">combination</a> of improved hygiene and sanitation standards.</p> <p>The risk of getting sick with gastro was significantly higher on <a href="https://www.cdc.gov/mmwr/volumes/70/ss/ss7006a1.htm">bigger ships and longer voyages</a>. This is because the longer you are in close contact with others, the greater the chance of exposure to an infectious dose of viruses or bacteria.</p> <h2>Why are cruise ships infection hotspots?</h2> <p>On cruise ships, people tend to <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8739343/">crowd together</a> in confined spaces for extended periods. These include dining halls, and during social activities in casinos, bars and theatres.</p> <p>The risk goes up when the environment is noisy, as more droplets and aerosols are shed when people are <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6382806/">laughing, shouting or talking loudly</a>.</p> <p>Passengers may come from <a href="https://www.sciencedirect.com/science/article/abs/pii/S1477893916300680?via%3Dihub">multiple countries</a>, potentially bringing variants from different parts of the world. Influenza, which is usually seasonal (late autumn to early spring) onshore, can occur at any time <a href="https://academic.oup.com/cid/article/31/2/433/295546">on a cruise ship</a> if it has international passengers or is calling at international ports.</p> <p>Human behaviour also contributes to the risk. Some passengers <a href="https://academic.oup.com/jtm/article/15/3/172/1821220">surveyed</a> following cruise ship gastro outbreaks indicated they were ill when they boarded the ship, or they became ill but didn’t disclose this because they didn’t want to pay for a doctor or be made to isolate, or they thought it wasn’t serious.</p> <p>Those who became ill were more likely than those who did not to think that hand hygiene and isolation were not effective in preventing infection transmission, and were less likely to wash their hands after using the toilet. Given <a href="https://www.health.nsw.gov.au/Infectious/factsheets/Pages/norovirus.aspx">faecal contamination</a> is a major source of norovirus transmission, this is concerning.</p> <p>While there are usually a la carte dining options on board, many people will choose a buffet option. From personal experience, food tongs are handled by multiple people, some of whom may not have cleaned their hands.</p> <h2>What can help?</h2> <p>The <a href="https://www.health.gov.au/news/ahppc-statement-advice-to-support-safe-cruising">Department of Health and Aged Care</a> recommends cruise companies encourage crew and passengers to be up-to-date with flu and COVID vaccinations, and encourage anyone who becomes ill to stay in their cabin, or at least avoid crowded spaces and wear a mask in public.</p> <p>They also recommend cruise ships have a plan to identify and contain any outbreaks, including testing and treatment capacity, and communicate to passengers and crew how they can reduce their transmission risk.</p> <p>All passengers and crew should report any signs of infectious illness, and practice good hand hygiene and <a href="https://www.cdc.gov/oralhealth/infectioncontrol/faqs/respiratory-hygiene.html">respiratory etiquette</a>, such as covering their mouth if coughing or sneezing, disposing of used tissues, and washing or sanitising hands after touching their mouth or nose.</p> <p>South Australia’s chief health officer has <a href="https://www.abc.net.au/news/2023-11-13/grand-princess-ship-covid-gastro-docks-in-adelaide/103096836">commended</a> the Grand Princess crew for their infection protection and control practices, and for getting the outbreak under control.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/217534/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><a href="https://theconversation.com/profiles/thea-van-de-mortel-1134101"><em>Thea van de Mortel</em></a><em>, Professor, Nursing, School of Nursing and Midwifery, <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a></em></p> <p><em>Image credits: Shutterstock</em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/from-covid-to-gastro-why-are-cruise-ships-such-hotbeds-of-infection-217534">original article</a>.</em></p>

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