Placeholder Content Image

Supersonic jets are making a comeback – but despite the hype, don’t expect to book yet

<p><em><a href="https://theconversation.com/profiles/chris-james-1178340">Chris James</a>, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a></em></p> <p>Late last week, American company Boom Supersonic flew faster than the speed of sound with its XB-1 supersonic demonstrator aircraft. It’s now the first <a href="https://boomsupersonic.com/press-release/boom-supersonic-achieves-supersonic-flight">piloted non-military aircraft to break the sound barrier</a> since the Concorde was retired from service in 2003.</p> <p>It’s the first step in Boom’s ambitious goal to have <a href="https://boomsupersonic.com/united">supersonic airliners carry passengers by 2029</a>.</p> <p>But what exactly is supersonic travel? There are good reasons why it’s not more common, despite the hype.</p> <h2>What is supersonic flight?</h2> <p>The Mach number is defined as a plane’s speed divided by the speed that sound waves move through the air. To “break the sound barrier” means to fly faster than the speed of sound, with Mach numbers greater than 1.</p> <p>The Mach number is an important ratio: as a plane flies, it disturbs the air in front of it. These disturbances move at the speed of sound. In supersonic flight these disturbances combine to form shock waves around the vehicle.</p> <p>When people say you can see a fighter jet before you hear it, they’re referring to supersonic flight: <a href="https://www.aerotime.aero/articles/top-10-worlds-fastest-fighter-jets">fighter jets can travel at around Mach 2</a>.</p> <p>The sound from the fighter jet is trapped inside its shock wave; until the shock wave moves to your position on the ground, you won’t hear the plane.</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/646302/original/file-20250202-15-d01bme.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/646302/original/file-20250202-15-d01bme.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/646302/original/file-20250202-15-d01bme.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=360&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/646302/original/file-20250202-15-d01bme.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=360&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/646302/original/file-20250202-15-d01bme.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=360&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/646302/original/file-20250202-15-d01bme.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=452&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/646302/original/file-20250202-15-d01bme.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=452&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/646302/original/file-20250202-15-d01bme.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=452&amp;fit=crop&amp;dpr=3 2262w" alt="" /></a><figcaption><span class="caption">Illustration of how disturbances propagate in subsonic, Mach 1, and supersonic flow.</span> <span class="attribution"><a class="source" href="https://commons.wikimedia.org/wiki/File:Transonico-en.svg">Chabacano/Wikimedia Commons</a>, <a class="license" href="http://creativecommons.org/licenses/by-sa/4.0/">CC BY-SA</a></span></figcaption></figure> <h2>The allure of supersonic travel</h2> <p>For efficiency reasons, most passenger jets cruise slightly slower than the speed of sound, at around Mach 0.8 (this is subsonic flight).</p> <p>Boom plans to build <a href="https://boomsupersonic.com/overture">an airliner called Overture</a> that can fly at Mach 1.7. Flying supersonically can drastically decrease flight times. The company claims a trip <a href="https://boomsupersonic.com/flyby/summer-travel-trends-future-travel-onboard-overture">from New York to Rome</a> on Overture could take just four hours and 40 minutes, instead of eight hours.</p> <p>Boom isn’t the only company working on this lofty goal. American firm Spike Aerospace is also developing a supersonic business jet, <a href="https://www.spikeaerospace.com/spike-s-512-supersonic-diplomat/">with the tagline</a> “delivering the world in half the time”.</p> <p>This is the value proposition of supersonic passenger travel.</p> <p>In limited ways, it did already exist in the 20th century. However, due to timing, bad luck and the laws of physics, it didn’t continue.</p> <h2>Remember the Concorde?</h2> <p>Designs for supersonic airliners began in the mid-20th century, and by the 1970s we had supersonic passenger flight.</p> <p>There was the little-known <a href="https://en.wikipedia.org/wiki/Tupolev_Tu-144">Russian Tupolev-144</a> and <a href="https://www.britannica.com/technology/Concorde">Concorde</a>, a Franco-British supersonic airliner operated by British Airways and Air France from 1976 to 2003.</p> <p>Concorde had a capacity of <a href="https://www.heritageconcorde.com/concorde-cabin--passenger-experience">up to 128 passengers</a> and cruised at Mach 2. It regularly travelled from London to New York <a href="https://airandspace.si.edu/stories/editorial/what-happened-concordes">in around three hours</a>. The flights were expensive, mainly shuttling business people and the rich and famous.</p> <h2>Why supersonic passenger flight didn’t take off</h2> <p>Concorde was designed in the 1960s when it seemed like supersonic passenger transport was going to be the next big thing.</p> <p>Instead, the Boeing 747 <a href="https://www.boeing.com/commercial/747-8">entered commercial service in 1970</a>. Cheap, large and efficient airliners like it blew Concorde out of the water.</p> <p>Designed to cruise efficiently at supersonic speeds, Concorde was extremely fuel inefficient when taking off and accelerating. Concorde’s expensive, “<a href="https://phys.org/news/2019-03-concorde-technical-feat-financial-fiasco.html">gas guzzling</a>” nature was a complaint levelled against it for most of its lifetime.</p> <p>A catastrophic <a href="https://www.flightglobal.com/safety/tu-144-crash-puzzle-persists-50-years-after-fatal-paris-display/153782.article">1973 Paris air show crash</a> of the competing Russian airliner, Tupolev Tu-144, also shifted public perception on supersonic flight safety at a time when many airlines were considering whether or not to purchase Concordes.</p> <p><a href="https://www.heritageconcorde.com/airframe-detail">Only 20 Concordes were manufactured</a> out of the <a href="https://simpleflying.com/concorde-orders/">planned 100</a>. It is still disputed today whether Concorde <a href="http://www.concordesst.com/faq.html">ever made money for the airlines who operated it</a>.</p> <figure class="align-right zoomable"><a href="https://images.theconversation.com/files/646303/original/file-20250202-15-gjm1zn.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/646303/original/file-20250202-15-gjm1zn.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=237&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/646303/original/file-20250202-15-gjm1zn.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=600&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/646303/original/file-20250202-15-gjm1zn.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=600&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/646303/original/file-20250202-15-gjm1zn.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=600&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/646303/original/file-20250202-15-gjm1zn.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=754&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/646303/original/file-20250202-15-gjm1zn.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=754&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/646303/original/file-20250202-15-gjm1zn.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=754&amp;fit=crop&amp;dpr=3 2262w" alt="" /></a><figcaption><span class="caption">Illustration of a shock wave propagating from a supersonic aeroplane and hitting the ground to produce a sonic boom.</span> <span class="attribution"><a class="source" href="https://commons.wikimedia.org/wiki/File:Supersonic_shockwave_cone.svg">Cmglee/Wikimedia Commons</a>, <a class="license" href="http://creativecommons.org/licenses/by-sa/4.0/">CC BY-SA</a></span></figcaption></figure> <h2>Noise is a real problem for supersonic flight</h2> <p>Remember the fighter jets? When a plane travels supersonically, its shock waves propagate to the ground, <a href="https://www.af.mil/About-Us/Fact-Sheets/Display/Article/104540/sonic-boom/">causing loud disturbances called sonic booms</a>. In extreme cases they can shatter windows and damage buildings.</p> <p>In the early 1970s, sonic boom concerns led the United States government to <a href="https://aerospaceamerica.aiaa.org/features/supersonic-travel-dead-on-arrival/">ban supersonic passenger flight over land in the US</a>. This hurt the Concorde’s potential market, hence its only two regular routes were trans-Atlantic flights principally over the water.</p> <p>The Concorde was also a very loud plane at take off, since it needed a lot of thrust to leave the ground.</p> <figure><iframe src="https://www.youtube.com/embed/3x9hO7n5WiA?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe><figcaption><span class="caption">Video footage of the final Concorde takeoff from New York’s JFK airport.</span></figcaption></figure> <h2>The future of supersonic travel</h2> <p>A future for supersonic travel relies on solving some or all of the issues Concorde faced.</p> <p><a href="https://www.nasa.gov/mission/quesst/">NASA and Lockheed Martin’s Quesst project</a> aims to show sonic boom can be dissipated to manageable levels. They plan to fly their X-59 supersonic aircraft over US cities and gauge responses from citizens.</p> <p>Quesst aims to use the geometry of the X-59, with a long elongated nose, to dissipate sonic booms to a weak “thump”, hopefully allowing supersonic airliners to travel over land in the future.</p> <p>Spike Aerospace’s Spike S-512 Diplomat concept also aims to be a <a href="https://www.spikeaerospace.com/quiet-supersonic-flight/">“quiet” supersonic aircraft</a> with a less disruptive sonic boom.</p> <h2>Can Boom surpass Concorde?</h2> <p>Boom Supersonic don’t plan to fly supersonically over land. Their plan is to fly over land at Mach 0.94, which they claim will allow <a href="https://boomsupersonic.com/overture">20% faster overland travel</a> than standard passenger airliners, even subsonically.</p> <p>They also claim the design of their engines will ensure Overture is <a href="https://boomsupersonic.com/flyby/the-new-sound-of-supersonic-q-a-with-booms-principal-acoustic-engineer">no louder than modern subsonic airliners when it takes off</a>.</p> <p>In terms of gas guzzling, they plan to use up to 100% sustainable aviation fuel to reduce emissions and <a href="https://boomsupersonic.com/press-release/boom-supersonic-and-dimensional-energy-announce-sustainable-aviation-fuel-offtake-agreement">their carbon footprint</a>.</p> <p>Concorde was made of aluminium using design tools available in the 1960s. Modern design methods and modern aerospace materials such as titanium and carbon fibre should also allow Overture and similar craft to weigh much less than Concorde, improving efficiency.</p> <p>While Boom are currently receiving a lot of interest, <a href="https://boomsupersonic.com/overture">with orders from many airlines</a>, Concorde did have similar commitment before it become available. <a href="https://www.heritageconcorde.com/concorde-orders-and-options">Most of it didn’t eventuate</a>.</p> <p>Additionally, Concorde was the product of an analogue era when the idea of flying to London or New York for the day for an important business meeting seemed like a necessary thing. In a world of remote work and video meetings, is there still a need for a supersonic airliner in the 2020s?</p> <p>For now, supersonic airliners like Overture are likely to remain in the realm of the rich and famous, like Concorde did. But with modern technological advances, it will be interesting to see whether supersonic passenger travel once again becomes reality – or even goes mainstream. Only time will tell.<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/248656/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><a href="https://theconversation.com/profiles/chris-james-1178340"><em>Chris James</em></a><em>, UQ Amplify Senior Lecturer, Centre for Hypersonics, School of Mechanical and Mining Engineering, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a></em></p> <p><em>Image credits: Boom Supersonic </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/supersonic-jets-are-making-a-comeback-but-despite-the-hype-dont-expect-to-book-yet-248656">original article</a>.</em></p>

International Travel

Placeholder Content Image

Friends charged hundreds to attend birthday party

<p dir="ltr">A woman has been left horrified after receiving an invitation to her friend’s birthday celebration that she would have to fork out hundreds of dollars to attend. </p> <p dir="ltr">In a post shared to Reddit, the stunned guest showed a picture of the invite - which was texted to the recipient's phone.</p> <p dir="ltr">It stated that the celebrations would take place on a Monday between 5:30pm and 7:30pm, writing that friends will be charged $499, while guests of friends will be $250.</p> <p dir="ltr">The invitee claimed that the party for the friend, who is a member of their local council, is being held at a pub. </p> <p dir="ltr">“I posted this after receiving the invitation, it's completely wrong but whatever. It's happening, now it's just shaking our heads and making a joke of the whole thing because of how ridiculous it is,” they wrote.</p> <p dir="ltr">Hundreds of people took to the comments of the Reddit post to express their outrage over the invitation, with many hypothesising that the party is actually a fundraiser. </p> <p dir="ltr">“Yep. 100 percent political fundraiser. There is a separate real birthday party, even if it is just the spouse and kids,” one person declared.</p> <p dir="ltr">“Since the friend is a politician my guess is they're treating it like a fundraiser, but still. Jesus,” someone else added.</p> <p dir="ltr">Many shared their opinions on the extortionate party, with one person writing, “On a Monday afternoon? For $250 an hour? There are no people I’d ever pay that for.”</p> <p dir="ltr">Others added that the occasion sounds “more like a happy hour” than a party, with another person writing that they “wouldn’t even send a card”. </p> <p dir="ltr"><em>Image credits: Shutterstock / Reddit</em></p>

Relationships

Placeholder Content Image

How can I keep my cat happy? 5 tips from a vet to help your feline friend live their best life

<p><em><a href="https://theconversation.com/profiles/anne-quain-12802">Anne Quain</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a></em></p> <p>Around <a href="https://animalmedicinesaustralia.org.au/report/pets-in-australia-a-national-survey-of-pets-and-people-2/">one third of Australian households live with at least one cat</a>, yet surveys tell us the cats’ <a href="https://journals.sagepub.com/doi/10.1177/1098612X19890189">needs are not being met</a>.</p> <p>Cats may <a href="https://www.sup.org/books/media-studies/unified-theory-cats-internet">rule the internet</a>, but humans often misconstrue feline behaviour. Earlier this year, the Washington Post boldly declared <a href="https://www.washingtonpost.com/home/2024/03/12/cats-behavior-misunderstood/">cat’s arent jerks – they’re just misunderstood</a>. This was prompted by research showing that, contrary to unhelpful stereotypes, <a href="https://www.sciencedirect.com/science/article/pii/S1090023323000795">cats are not antisocial</a>. They can and do bond closely with humans.</p> <p>The more we learn about cats, the more we realise they are complex individuals with unique <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC8300181/">personalities</a> and preferences, capable of <a href="https://www.nature.com/articles/s41598-024-74006-2">learning</a>.</p> <p>From understanding your cat’s language to keeping them safe and healthy – here are science-backed tips to improve the lives of your feline flatmates.</p> <h2>1. Pay attention to body language</h2> <p>Cats communicate with humans using body language and vocalisation. However, while cats direct meows at humans, and the meows vary depending on the context, humans <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC7765146/">are not great at decoding them</a>. But we can read cat body language.</p> <p>For example, slow blinking is likely to indicate a <a href="https://www.nature.com/articles/s41598-020-73426-0">positive emotional state</a>. Cats who are not happy (for example, don’t want to be touched) will freeze, move away, flatten their ears, hiss, or – if they feel they have no other option – scratch or bite.</p> <p>It is better to allow cats to approach you on their terms, rather than pushing for social interaction. A cat approaching you with their tail up is giving a <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC8469685/">friendly signal</a>, while a tail swishing from side to side signals annoyance.</p> <p>Cats should always have the option to opt out of any interaction, like being touched. If you aren’t sure, just “<a href="https://www.companionanimalpsychology.com/p/purr-science-of-making-your-cat-happy.html">ask</a>”: stop patting them. If they walk away, they’re not keen. If they rub their head against you, they want to continue the interaction.</p> <h2>2. Provide a healthy environment</h2> <p>The American Association of Feline Practitioners and the International Society of Feline Medicine have agreed upon <a href="https://journals.sagepub.com/doi/full/10.1177/1098612X13477537">five pillars of a healthy feline environment</a>:</p> <ol> <li> <p>A safe space so that cats can retreat if frightened.</p> </li> <li> <p>Multiple, separated key resources (food, water, toileting areas, scratching areas, play areas and resting or sleeping areas) so that cats can comfortably conduct their daily activities.</p> </li> <li> <p>Opportunity for play and predatory behaviour, such as games with wand toys that simulate hunting.</p> </li> <li> <p>Positive, consistent and predictable human-cat interactions, respecting a cat’s choice about whether and how they interact.</p> </li> <li> <p>Respecting the importance of a cat’s senses by avoiding undesirable stimuli (strong smells and loud noises), and providing desirable sensory stimulation (for example, use of <a href="https://theconversation.com/are-catnip-and-treats-like-it-safe-for-cats-heres-how-they-affect-their-minds-and-moods-214947">catnip or silver vine</a>).</p> </li> </ol> <p>These pillars provide a useful checklist. If you read this and realise your cat’s food and water are right next to the litter tray, you can improve your cat’s environment (and their experiences of eating and toileting) by separating these resources right now.</p> <h2>3. Clean the litter tray!</h2> <p>A litter tray may represent an unpleasant chore to you, but the importance of a spacious litter tray to your cat cannot be overstated. Cats <a href="https://www.sciencedirect.com/science/article/pii/S0376635716302972">prefer using a clean litter tray</a>, even if they are the only cat in the household.</p> <p>Cats like to <a href="https://www.sciencedirect.com/science/article/pii/S016815911730151X">spend time in the tray</a> before, during and after toileting, and they generally <a href="https://www.sciencedirect.com/science/article/pii/S1558787814000033">prefer a large tray</a>.</p> <p>Poor litter hygiene is associated with a risk of urinary problems, which can be <a href="https://onlinelibrary.wiley.com/doi/10.1111/jvim.16389">life-threatening</a>. A <a href="https://doi.org/10.1177/1098612X19890189">survey of over 12,000 Australian cat owners</a> found that urinary problems were more common in households with a low number of litter trays per cat, less frequent removal of faeces from the trays, and the use of crystal-type cat litter.</p> <p>If you switch the type of litter you provide, a <a href="https://www.mdpi.com/2076-2615/12/8/946">slow transition</a> is recommended to allow cats to get used to the change.</p> <h2>4. Read the room</h2> <p>Do you have more than one cat? Tension between household cats is common but often overlooked, as it’s not always physical fighting. Signs of inter-cat tension can include prolonged staring, or even blocking the use of resources such as the litter tray or cat door, to prevent other cats from using them.</p> <p>In their <a href="https://journals.sagepub.com/doi/10.1177/1098612X241263465">2024 intercat-tension guidelines</a>, the American Association of Feline Practitioners note this can case chronic fear, anxiety and stress-related illnesses in cats.</p> <p>Learning to recognise and manage tension between household cats can improve the welfare of all parties.</p> <p>When you love your cat, it is tempting to seek to amplify the joy by adopting another. But many cats prefer to be the only cat in the household, and don’t cope well with a <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC10083434/">feline flatmate</a>. If they have positive interactions with familiar, trusted humans, they’re unlikely to be lonely.</p> <h2>5. Keep cats and other animals safe</h2> <p>Historically, domesticated cats earned their keep <a href="https://www.sciencedirect.com/science/article/pii/S0169534720300100">protecting grain stores</a> from rodents. But what constitutes responsible cat ownership has changed. Around 65% of Australia’s cat owners <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC10215893/">confine their cats</a> indoors always, while 24% keep their cats confined at night.</p> <p>A major driver for indoor-only housing of cats is their <a href="https://theconversation.com/one-cat-one-year-110-native-animals-lock-up-your-pet-its-a-killing-machine-138412">predation of wildlife</a>. Another is concerns about roaming-associated risks to cats, including cat fights, infectious diseases (such as <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC9546031/">feline immunodeficiency virus or FIV</a>), misadventure and motor vehicle trauma. But owners of cats kept entirely indoors were more likely to report <a href="https://www.sciencedirect.com/science/article/abs/pii/S0168159119301054?via%3Dihub">“problem” behaviours</a>.</p> <p>Ideally, cats shouldn’t be allowed to free-roam unsupervised where they can harm wildlife, even within the bounds of the property where you live. More than a third of local councils in Australia <a href="https://www.abc.net.au/news/2024-05-19/banning-pet-cats-roaming-native-animals-billions-dollars-council/103856000">now require</a> cats to be contained overnight or 24 hours a day.</p> <p>Outdoor access provides sensory stimulation, with different sights, sounds and smells. Alternatives to free roaming include providing access to a well-designed cat run, harness-training your cat, or supervising your cat.</p> <p>Cats who don’t leave home unless they’re moving house or being taken to the vet, quickly learn to associate the cat carrier with a trip to an unfamiliar environment. It doesn’t take a genius to work out that a vet visit is imminent when the carrier comes out.</p> <p>But that negative association can be changed. <a href="https://www.sciencedirect.com/science/article/pii/S0168159118302703">Cats who were rewarded with treats</a> when they approached, stepped inside or rested in the carrier for six weeks were much less stressed during veterinary visits.</p> <p>Cats are intelligent, and contrary to popular opinion, can be trained. The process can be enriching for cats and humans alike. With patience and commitment, <a href="http://www.smallanimaltalk.com/2017/04/book-review-trainable-cat-plus-that.html">you can train your cat</a> – from a simple “sit” to voluntarily stepping into the cat carrier.</p> <p>In short, give cats choice, respect their “cat-ness”, pay attention to their needs and try to see our world from their point of view. Your cat will be happier for it.<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/242774/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/anne-quain-12802">Anne Quain</a>, Senior Lecturer, Sydney School of Veterinary Science, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</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/how-can-i-keep-my-cat-happy-5-tips-from-a-vet-to-help-your-feline-friend-live-their-best-life-242774">original article</a>.</em></p>

Family & Pets

Placeholder Content Image

Bruce Willis makes first public appearance in three years

<p>Bruce Willis has been spotted out in public for the first time in three years for one very good reason. </p> <p>After living away from the spotlight for many years after being diagnosed with dementia, the 69-year-old stepped out to share his gratitude to the firefighters battling the LA fires. </p> <p>The actor's wife, Emma Heming Willis, took to Instagram to share a video of Willis shaking hands and chatting with firefighters before posing for a picture.</p> <p>"Spotting a first responder, Bruce never missed a chance to show his gratitude with a heartfelt handshake and a "thank you for your service."," Emma wrote in the caption.</p> <p>"Yesterday was no different ❤️🤍💙".</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/DE5Iup8Pylc/?utm_source=ig_embed&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/DE5Iup8Pylc/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by Emma Heming Willis (@emmahemingwillis)</a></p> </div> </blockquote> <p>This is the first time the Hollywood icon has been seen in public since his family announced he has been diagnosed with the language disorder aphasia in 2022, before also being diagnosed with frontotemporal dementia.</p> <p>The actor stepped away from the spotlight after his dual diagnosis, with his family regularly sharing updates about his health battle on social media.</p> <p>In December, Emma shared a touching tribute to her husband on their 17th anniversary.</p> <p>"Anniversaries used to bring excitement – now, if I'm honest, they stir up all the feelings, leaving a heaviness in my heart and a pit in my stomach," she wrote beside what appeared to be a throwback image of the couple in Turks and Caicos.</p> <p>"I give myself 30 minutes to sit in the 'why him, why us,' to feel the anger and grief. Then I shake it off and return to what is. And what is… is unconditional love. I feel blessed to know it, and it's because of him. I'd do it all over again and again in a heartbeat 💞".</p> <p><em>Image credits: Instagram </em></p>

Caring

Placeholder Content Image

How to make gravy (using chemistry)

<p><a href="https://theconversation.com/profiles/nathan-kilah-599082">Nathan Kilah</a>, <em><a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a></em></p> <p>“Gravy Day” is a relatively new date in the Australian calendar. Paul Kelly’s song <a href="https://theconversation.com/humbug-tinsel-and-gravy-in-search-of-the-perfect-christmas-pop-song-88924">How to Make Gravy</a> tells the story of a prisoner (Joe) writing to his brother on December 21. Joe laments missing the family Christmas celebrations and asks who will make gravy for the roast lunch in his absence.</p> <p>While a roast may not be everyone’s idea of the perfect <a href="https://theconversation.com/a-festive-feast-of-fish-and-fruit-the-creation-of-the-australian-christmas-dinner-151201">Christmas feast</a>, “Gravy Day” does give the opportunity to discuss the chemistry involved in making gravy – a thickened sauce made from drippings collected from roasted meats.</p> <h2>Give my love to Angus (beef?)</h2> <p>Roasting meat sets off a cascade of chemical reactions, producing myriad new flavour chemicals. More than <a href="https://link.springer.com/chapter/10.1007/978-1-4615-2143-3_10#:%7E:text=This%20has%20resulted%20in%20the,and%20lean%20components%20of%20meat.">1,000</a> flavour compounds have been identified in roasted meats.</p> <p>Each chemical gives its unique characteristics to the taste and smell of the finished roast. The chemical <a href="https://www.sciencedirect.com/science/article/pii/S0308814698000764">12-methyltridecanal</a> helps give roast beef its “beefy” flavour, while the sulfur-containing compound <a href="https://www.sciencedirect.com/science/article/pii/S0963996922004422">2-methyl-3-furanthiol</a> is more often found in roast chicken.</p> <p>There are three main types of chemical reactions taking place when roasting meats that produce flavour chemicals.</p> <p>The <a href="https://theconversation.com/kitchen-science-from-sizzling-brisket-to-fresh-baked-bread-the-chemical-reaction-that-makes-our-favourite-foods-taste-so-good-58577">Maillard reaction</a> is responsible for both colour and flavour. This broad reaction type takes place between amino acids from the protein and sugars and simple carbohydrates found in the meat.</p> <p>The Maillard reaction is also the chemistry responsible for many favourite flavours, including roasted coffee, chocolate, steak, toast and more.</p> <h2>A hundred degrees, even more maybe</h2> <p>The other main type of reaction occurring in a hot oven is the breakdown of fats by “<a href="https://doi.org/10.1016/j.foodres.2022.111385">lipid degradation</a>”. This can form hundreds of different chemical compounds. Many of these chemicals are described as “fatty”, “tallowy”, or smell like fried foods.</p> <p>The unique fat profiles found in different animals translate to the profile of flavour chemicals that form from lipid degradation when roasted. Further flavour compounds can arise through the third type of reactions combining products of Maillard reactions and lipid degradation.</p> <p>One specific flavour compound identified as having a “gravy aroma” is known as <a href="https://pubs.acs.org/doi/10.1021/jf9023189">3-mercapto-2-methylpentan-1-ol</a>. This compound comes from roasted vegetables, so including some veggies in your roasting pan will give you more depth of gravy flavour. Also, “cutting onions” is a useful excuse if listening to How to Make Gravy gets you feeling emotional.</p> <h2>The treasure and the trash</h2> <p>Roasting meats causes the fats to “render” and separate from the meat as a liquid. The fat pools in the tray with flavour-rich meat juices.</p> <p>While the fat and the water both carry flavour compounds, too much fat can give the finished gravy an unpleasant mouth feel, or can separate into layers when served.</p> <p>It’s worth pouring off the pan juices into a jug to allow the fat to separate from the liquid so you can control how much fat you’re adding. Be sure to dispose of the excess fat responsibly – <a href="https://theconversation.com/why-shouldnt-i-pour-oil-or-paint-down-the-sink-and-what-should-i-do-instead-206604">don’t pour it down the drain</a>.</p> <h2>Just add flour…</h2> <p>Flour (or, more specifically, starch) is the secret ingredient of a good gravy. Starches are <a href="https://www.sciencedirect.com/science/article/pii/S0168945222000474">large complex chemicals</a> that are made up of lots of sugars joined together.</p> <p>Starch granules are tightly packed and swell greatly when they absorb water. The swollen starch molecules forms a gel-like network that traps water and oil to give a thickened gravy.</p> <p>Wheat flour is most often used as the starch source. Corn and arrowroot starch can also be used. They have a higher percentage of starch than flour and a more neutral flavour.</p> <p>Wheat starch typically requires a larger quantity to be added and longer cooking to form a paste. Whichever starch you use, don’t add it too quickly or without mixing as you’ll form lumps.</p> <h2>…salt, red wine, and a dollop of tomato sauce</h2> <p>Salt is a common ingredient when preparing roast meats, both on the surface of the meat to draw out moisture and as a flavouring agent. The pan juices are typically concentrated as part of the gravy making process.</p> <p>Make sure you taste the gravy before seasoning, as salt will be concentrated by heating.</p> <p>Additional flavour components can be introduced by adding red wine, sherry, stock, or tomato sauce. These ingredients will broaden the flavour profile through sweetness (sugar), acidity (vinegar, citric and malic acids), and umami in the case of tomato sauce (natural glutamates, such as those found in MSG). Some folk even add Vegemite to their gravy for an extra umami boost.</p> <h2>I bet it will taste the same</h2> <p>If you happen to have screwed up your gravy this time, or are after convenience, then you can turn to an instant gravy powder. The main ingredient is typically maltodextrin or another corn-derived (and possibly chemically modified) starch.</p> <p>Shelf-stable powdered fats, salt, colours, and a range of <a href="https://theconversation.com/busting-the-myth-that-all-food-additives-are-bad-a-quick-guide-for-label-readers-82883">flavour additives</a> will be present in varying amounts depending on the style and price point of the product.</p> <p>The advantages of the instant version are speed and uniformity due to the carefully controlled commercial production.</p> <p>So unlike Joe’s concerns for his family’s gravy, an instant gravy will be more likely to taste the same, regardless of who ends up making it.<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/219589/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/nathan-kilah-599082">Nathan Kilah</a>, Senior Lecturer in Chemistry, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</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/how-to-make-gravy-using-chemistry-219589">original article</a>.</em></p>

Food & Wine

Placeholder Content Image

Why does grass make my skin itch?

<p><em><a href="https://theconversation.com/profiles/deryn-lee-thompson-1449312">Deryn Lee Thompson</a>, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a></em></p> <p>So, you’ve enjoyed a picnic in the sunshine. Or you’ve sat on the grass for a twilight concert. But you’ve come away with itchy and scratchy skin.</p> <p>Could you have an allergy to grass? Or is something else going on?</p> <h2>Grass has tiny hairs</h2> <p>One possible reason we get a rash is the physical structure of grass itself.</p> <p><a href="https://bmcplantbiol.biomedcentral.com/articles/10.1186/s12870-021-02840-x">Blades of grass</a> are covered in tiny “hairs” (called trichomes), which you can view under a microscope.</p> <p>These help protect the grass from being eaten by insects or animals, damaged by ultraviolet rays or losing too much water.</p> <p>Trichomes can also cause tiny scratches to the skin and the skin reacts by becoming red and may feel itchy.</p> <p>Some species of grass are also firmer or stiffer so may feel more “scratchy” when people sit on them.</p> <p>Skin is a complex organ and is linked to the immune system. When irritated, the skin and immune system recognise something is happening and release complex chemicals that can <a href="https://www.jacionline.org/article/S0091-6749%2815%2900575-8/fulltext">cause redness and itching</a>.</p> <p>People with dry, red, itchy skin conditions often find their skin is extra sensitive to grass and other irritants like fertilisers or sprays. For example, if you have eczema (also called dermatitis) your skin looks and feels dry, as your <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC5849435/">skin barrier is damaged</a>.</p> <h2>Could it be an allergy?</h2> <p>Grass allergy involves <a href="https://www.allergy.org.au/patients/allergic-rhinitis-hay-fever-and-sinusitis/pollen-allergy">aero-allergens</a>, that is, the grass pollen in the air. Symptoms include runny or a stuffy nose, itchy nose and eyes and even itchy ears.</p> <p>If you have these symptoms allergy specialists <a href="https://www.allergy.org.au/patients/allergy-testing/allergy-testing">may perform a skin prick test</a> to identify particular aero-allergen triggers.</p> <p>After the allergist takes your detailed history, drops of various allergens are placed on the forearm, along with a positive and negative control. A sterile lancet pricks the skin through the drop. After 15 minutes the test is read, with positive reactions showing a “wheal and flare” response (a lump like a mosquito bite and redness). The allergist then interprets the findings.</p> <p>But, in the absence of hay fever-like symptoms, dermatologists may perform <a href="https://dermnetnz.org/topics/patch-tests">allergy patch testing</a> to investigate contact allergies (dermatitis) to specific plants, for example <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC9542089/"><em>Compositae</em></a>.</p> <p>In a patch test the dermatologist places a series of small chambers (or sticky dots) on the back, each one containing a different potential allergen. The test takes several days to produce results. If a reaction develops under a test chamber, the dermatologist may confirm allergic contact dermatitis.</p> <p>But definitive results are tricky as these two allergy tests can’t tell you if your rash is from physical irritation – such as the tiny scratches – rather than an allergy.</p> <h2>How can I avoid it?</h2> <p>The best way to reduce physical irritation problems with grass it to limit contact. This could involve simple things like wearing long sleeves or pants, or sitting on a rug or towel.</p> <p>Many Australians do have dry skin, but do not often realise how dry it is. So, applying a <a href="https://toolkit.eczemasupport.org.au/my-self/moisturising-creams/">basic thick moisturiser</a> to the face and body skin can help place a barrier between the grass and the skin. Sunscreen is also recommended when outdoors.</p> <p>For people who have dry, red or itchy skin conditions or those who experience itchiness when sitting on the grass, taking <a href="https://allergyfacts.org.au/allergy-treatments-antihistamine/">antihistamines</a> a minimum of 30 minutes before you sit on the grass may help lessen the itchiness.</p> <h2>How can I calm my skin?</h2> <p>If you do develop a an irritant rash, here are a few tips. You could try</p> <ul> <li> <p>taking an <a href="https://allergyfacts.org.au/allergy-treatments-antihistamine/">antihistamine</a></p> </li> <li> <p>rinsing skin with tepid water</p> </li> <li> <p>washing off the potential irritants with a non-soap-based bland body cleanser <a href="https://toolkit.eczemasupport.org.au/my-self/bathing-showering-and-washing-clothes/">can be helpful</a>. Then, re-apply a layer of thick, bland, fragrance-free moisturiser.</p> </li> </ul> <p>If none of these measures help, see a pharmacist for advice on using an appropriate strength cortisone cream which may <a href="https://www.healthdirect.gov.au/rashes">help reduce</a> the symptoms.</p> <p>Be aware of more serious signs of an <a href="https://www.allergy.org.au/patients/about-allergy/anaphylaxis">allergic reaction</a>. If in addition to red bumps and itchiness, other symptoms such as shortness of breath, cough, wheeze, chest tightness or facial swellings develop while sitting on the grass, people may need urgent medical care.<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/243046/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/deryn-lee-thompson-1449312">Deryn Lee Thompson</a>, Lecturer in Nursing, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South 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/why-does-grass-make-my-skin-itch-243046">original article</a>.</em></p>

Body

Placeholder Content Image

The anatomy of a hot flush – and whether it can really make your head steam

<p><em><a href="https://theconversation.com/profiles/michelle-spear-172043">Michelle Spear</a>, <a href="https://theconversation.com/institutions/university-of-bristol-1211">University of Bristol</a></em></p> <p>A hot flush is a phenomenon as disruptive as it is commonplace. One moment, life proceeds as usual. The next, a wave of heat rises, spreading from the chest to the face – leaving behind flushed skin and beads of sweat. For many, this sudden warmth is accompanied by an <a href="https://www.mayoclinic.org/diseases-conditions/hot-flashes/symptoms-causes/syc-20352790">accelerated heartbeat and a faint sense of unease</a>. Though brief – typically lasting anywhere from 30 seconds to five minutes – its intensity can be startling and made worse by unpredictable timing.</p> <p>A recent viral video has brought attention to just how intense a hot flush can be. The video depicts a woman named Tracey Monique <a href="https://uk.style.yahoo.com/menopause-hot-flush-flash-symptoms-134536113.html?guccounter=1">experiencing a hot flush</a> while at an outdoor event. In the video, her head is literally steaming.</p> <p>The sight of wisps of vapour escaping her head highlighted the dramatic effects of this common <a href="https://www.nhs.uk/conditions/menopause/symptoms/">perimenopausal symptom</a>. Often misunderstood or trivialised, the image of a hot flush brings fresh attention to a phenomenon that affects an estimated <a href="https://www.hopkinsmedicine.org/health/conditions-and-diseases/introduction-to-menopause">75% of people experiencing perimenopause</a>.</p> <p>The video has also sparked debate on social media – reflecting the complexity of hot flushes themselves. Some argue the steam escaping Monique’s head was caused by her removing her hat while being in the cold. But many women have commented, saying the video perfectly encapsulates what a hot flush feels like.</p> <p>Let’s take a look at what’s actually happening during a hot flush and why they can feel so severe.</p> <h2>Hormonal instigators</h2> <p>At the heart of a hot flush lies oestrogen – a hormone critical role in regulating body temperature in women. Oestrogen directly <a href="https://my.clevelandclinic.org/health/body/22566-hypothalamus">influences the hypothalamus</a>, a small but essential structure in the brain often referred to as the <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC6397692/">body’s thermostat</a>. The hypothalamus monitors and adjusts body temperature to maintain balance.</p> <p>Under normal circumstances, the hypothalamus keeps the body within a narrow temperature range – adjusting blood flow and sweat production as needed. But during perimenopause, <a href="https://www.rcog.org.uk/for-the-public/browse-our-patient-information/treatment-for-symptoms-of-the-menopause/?utm_source=chatgpt.com">oestrogen levels fluctuate</a> unpredictably and eventually decline. These hormonal shifts disrupt the hypothalamus’s ability to maintain its usual set temperature.</p> <p>Declining oestrogen levels also make the hypothalamus overly sensitive to small changes in body temperature – misinterpreting these as <a href="https://pubmed.ncbi.nlm.nih.gov/31001050/">signs of overheating</a>. This triggers an exaggerated response aimed at cooling the body down: a hot flush. The result is a sudden dilation of blood vessels, particularly in the skin of the upper body, to allow heat to radiate outward. Simultaneously, sweat glands activate – intensifying the sensation of heat.</p> <p><a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC3956631/">Luteinising hormone</a>, which primarily regulates ovulation, also plays a secondary role in hot flushes. As oestrogen levels decline, the pituitary gland (which regulates key hormones that control growth, reproduction and metabolism) <a href="https://academic.oup.com/endo/article/163/2/bqab268/6490154">releases erratic surges</a> of lutenising hormone. These spikes appear to further heighten the hypothalamus’s sensitivity, amplifying its misinterpretation of normal body temperature as overheating.</p> <h2>The cooling response</h2> <p>During a hot flush the hypothalamus sends urgent signals to the autonomic nervous system, which governs involuntary functions such as heart rate, blood pressure and sweating. This prompts blood vessels near the skin to dilate – a <a href="https://www.ncbi.nlm.nih.gov/books/NBK557562/">process called vasodilation</a>. This allows more blood to flow to the surface to release heat. This is why the face, neck and chest can feel intensely warm and look visibly flushed during a hot flush.</p> <p>Almost simultaneously, the hypothalamus activates sweat glands in the upper body. Sweating is meant to <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC6773238/">cool the body</a> through evaporation. In cold environments, this sweat may produce visible steam – as seen in Monique’s viral video.</p> <p>But once the hypothalamus realises the body isn’t actually overheated, vasodilation subsides and blood vessels return to their normal state. But the rapid cooling effect from sweating can leave women <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC4612529/">feeling chilled</a>. This creates a rollercoaster of sensations during and after the hot flush.</p> <p>This sequence – heat, flush, sweat and chill – reflects the body’s struggle to regain equilibrium in response to a misfiring thermostat.</p> <h2>The debate</h2> <p>While the sensation of heat is undeniable, whether hot flushes significantly raise skin temperature remains debated.</p> <p><a href="https://www.maturitas.org/article/0378-5122(79)90009-4/abstract">Thermographic studies</a>, which use infrared imaging to measure heat patterns and surface temperature, have demonstrated measurable skin temperature rises – particularly in the face, neck and chest.</p> <p>But other research has found only <a href="https://www.obgproject.com/2019/07/24/are-menopausal-hot-flushes-really-triggered-by-core-temperature/">minor or negligible changes</a> in skin temperature. This raises questions about whether the perception of heat correlates directly with physiological changes.</p> <p>Critics suggest that the sensation of heat stems more from the brain’s altered thermoregulation than from actual warming of the skin. Tools such as thermographic imaging may also miss subtle or transient temperature changes – or these changes may be masked by sweat evaporation.</p> <p>It may also be the case that <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC4612529/">skin temperature changes</a>, like other perimenopausal symptoms, vary widely between people. The <a href="https://bmcwomenshealth.biomedcentral.com/articles/10.1186/1472-6874-9-13">variability in oestrogen levels</a> contributes significantly – with those experiencing more erratic hormonal changes often reporting more intense or frequent flushes. Factors such as <a href="https://www.mdpi.com/2072-6643/16/5/655">genetics, lifestyle and environmental triggers</a>, all add to the diversity of experiences and how intense symptoms might be.</p> <p>Hot flushes are a complex interplay of hormonal, neurological and vascular responses. While the scientific debate about skin temperature changes remains unresolved, the lived experience of heat and discomfort is undeniable. For many, these symptoms are disruptive and even debilitating, profoundly affecting daily life.</p> <p>Monique’s viral video, with the striking image of steam rising from her head, has resonated deeply with countless women – offering stark visual evidence of what they’ve felt but often struggled to articulate. Understanding the anatomy of a hot flush not only sheds light on its mechanisms but also underscores the importance of empathy and tailored approaches to managing this multifaceted symptom.<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/244452/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/michelle-spear-172043">Michelle Spear</a>, Professor of Anatomy, <a href="https://theconversation.com/institutions/university-of-bristol-1211">University of Bristol</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/the-anatomy-of-a-hot-flush-and-whether-it-can-really-make-your-head-steam-244452">original article</a>.</em></p>

Body

Placeholder Content Image

Booking a summer holiday deal? Beware ‘drip pricing’ and other tactics to make you pay more than you planned

<p><em><a href="https://theconversation.com/profiles/jeannie-marie-paterson-6367">Jeannie Marie Paterson</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p>Have you ever spotted what looked like a great deal on a website, added it to your “basket” and proceeded to checkout – only to find extra fees added on at the last minute?</p> <p>It’s frustratingly common when making airline, hotel and many other kinds of bookings to see an advertised price get ratcheted up at checkout with additional fees – perhaps “shipping insurance”, “resort fees” or just “taxes”.</p> <p>The practice is known as “<a href="https://www.accc.gov.au/consumers/pricing/price-displays">drip pricing</a>” and it can <a href="https://www.whitehouse.gov/wp-content/uploads/2023/03/WH-Junk-Fees-Guide-for-States.pdf">distort</a> consumer decision-making and affect competition. Nonetheless, there is no specific ban on this conduct in Australia.</p> <p>Some companies have, however, effectively been prosecuted for it under the Australian Consumer Law, which contains some strict rules about misleading consumers through advertising.</p> <p>Many of us have already begun booking flights, hotels and more as we head into the summer holiday season. Here’s what the law says about companies changing prices in the lead-up to checkout, and how you can protect yourself as a consumer.</p> <h2>What’s wrong with drip pricing?</h2> <p>The tactic that underpins drip pricing is to draw a customer in with an attractive “headline” price but then add in other fees as the customer approaches the checkout.</p> <p>It’s reasonable to ask whether there’s anything wrong with this practice: after all, the customer still sees the final price at checkout. Why might that be seen as misleading conduct under Australian Consumer Law?</p> <p>The reasons lie in views about consumer buying behaviour and the nature of the statutory prohibition.</p> <p>Typically, the closer a consumer gets to a sale, the less likely they are to pull out or even fully notice any additional fees.</p> <p>They may then end up paying more than they intended and also have lost the opportunity to deal with other suppliers of the same product at a better price.</p> <p>In the relevant section of Australian Consumer Law, there’s no requirement of an intention to mislead. It’s also not necessarily relevant that the true pricing situation is eventually revealed to the consumer or that it’s in the “fine print”.</p> <p>Thus, in the eyes of the law, it can be enough that consumers were enticed by an attractive headline price.</p> <h2>Price surprises</h2> <p>This legal position is well illustrated by a <a href="https://www8.austlii.edu.au/cgi-bin/viewdoc/au/cases/cth/HCA/2013/54.html">case</a> settled by the High Court in 2013, after the Australian Competition and Consumer Commission (ACCC) took on telecom provider TPG Internet in <a href="https://www.mondaq.com/australia/advertising-marketing-branding/282802/advertising-and-the-acl-fine-print-couldnt-save-tpg-internet-in-the-high-court">2010</a>, alleging misleading conduct.</p> <p>In this case, TPG had been advertising broadband internet services for $29.99 per month.</p> <p>But on reading the fine print, you’d have discovered this deal was only available with a landline service costing an additional $30 per month.</p> <p>The case moved up through Australia’s court system, but ultimately, the High Court majority held that the telco had engaged in misleading conduct.</p> <p>The High Court recognised that the very point of advertising is to draw consumers into “the marketing web”. It is therefore not enough to disclose the true (higher) price only at the point the transaction is concluded.</p> <p>TPG was fined $2 million in this case. Since then, the maximum penalties have increased, now the higher of:</p> <ul> <li>$50 million</li> <li>three times the value obtained from the contravention, or (if the benefit can not be determined)</li> <li>30% of the business’s adjusted turnover during the breach period.</li> </ul> <h2>Dynamic pricing</h2> <p>Other pricing complaints have been in the news recently, including concerns about point-of-sale dynamic pricing.</p> <p>Basically, this means using an algorithm that adjusts ticket prices in response to demand, as consumers wait in a virtual purchasing queue.</p> <p>Recent media reporting has centred on <a href="https://www.abc.net.au/news/2024-10-14/ticketmaster-live-nation-dynamic-pricing-tickets-class-action/104469646">concerns</a> about the use of point-of-sale dynamic pricing in the events ticketing industry.</p> <p>A form of dynamic pricing is used by hotels and airlines. They increase prices seasonally and according to demand. But these “dynamic” prices are clearly visible to consumers as they start looking for a deal. Some bodies even publish helpful tables of likely prices at different times.</p> <p>The kind of dynamic pricing that happens at the very point consumers are waiting to buy is very different and arguably creates an “unfair surprise”.</p> <p>Whether these kinds of practices also fall within the category of misleading conduct remains to be seen.</p> <p>But it is arguable that consumers could reasonably expect the real-time movement of prices to be disclosed upfront.</p> <p>Earlier this year, the government announced <a href="https://theconversation.com/albanese-government-promises-to-ban-dodgy-trading-practices-234142">plans</a> to address both drip pricing and dynamic pricing as part of a broader ban on unfair trading practices.</p> <h2>What can consumers do?</h2> <p>While all this law reform and litigation is playing out, here are some things you can do to avoid pricing shock.</p> <p><strong>1. Slow down.</strong> One of the strategies that online markets often rely on is “<a href="https://www.theguardian.com/australia-news/2024/oct/12/accc-suing-coles-woolworths-pricing-strategies-allegations">scarcity signalling</a>” – those clocks or numbers you see counting down as you move through a website.</p> <p>The very purpose of these is to make a consumer rush – which can mean failing to notice those additional fees that may make the buy not a good deal.</p> <p><strong>2. Take screen shots as you progress.</strong> Remember what it is you thought you were getting. Doing this also provides a basis for lodging a complaint if the headline and actual price don’t match up.</p> <p><strong>3. Check.</strong> Take a close look at the final bill before pressing pay.</p> <p><strong>4. Report.</strong> Tell your local Fair Trading Office or the ACCC if the advertised deal and the final price don’t meet up.</p> <p>A recent action taken by the ACCC against <a href="https://www.theguardian.com/australia-news/2024/sep/23/accc-suing-coles-woolworths-discounts-misleading">Woolworths and Coles</a> alleging “illusory” discounts was launched because of consumer tip-offs.<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/244825/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/jeannie-marie-paterson-6367">Jeannie Marie Paterson</a>, Professor of Law, <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/booking-a-summer-holiday-deal-beware-drip-pricing-and-other-tactics-to-make-you-pay-more-than-you-planned-244825">original article</a>.</em></p>

Travel Trouble

Placeholder Content Image

Readers response: What's one song that never fails to make you cry?

<p>We asked our readers what song always fills them with emotion, whether because of the lyrics or being associated with a heartfelt memory. Here's what they said.</p> <p><strong>Kathryn Sands</strong> - Dance with my Father by Luther Vandross.</p> <p><strong>Carol Hanson</strong> - Amazing Grace. Was played on the bagpipes at my mum's funeral.</p> <p><strong>Matthew Walter</strong> - Probably "When You Kiss Me" by Shania Twain, as it's the song my wife walked down the aisle to on our wedding day. The other one would be "What I Never Knew I Always Wanted" by Carrie Underwood, which played after my son was born. Just sums up parenthood perfectly!</p> <p><strong>Patricia Sundin</strong> - “I was only 19”. Makes me think of all my friends who were conscripted to go to fight in Vietnam. Not a happy time.</p> <p><strong>Janette Willis</strong> - What a Wonderful World - Louis Armstrong. </p> <p><strong>Trish Watts </strong>- If Tomorrow Never Comes by Garth Brooks.</p> <p><strong>Jan Palmer</strong> - Imagine by John Lennon. </p> <p><strong>Adelle Ellmers</strong> - Sounds of Silence cover by Disturbed. Played at my husband's funeral. It was one of his favourites.</p> <p><strong>Gay Sharran Gold</strong> - At Last…. I have to turn it off when it plays. My daughter married her partner two days before she died and had that playing for their song.</p> <p><strong>Heather Widjaja</strong> - Monsters by James Blunt. Always reminds me of the last days of my Dad's life.</p> <p><strong>Jeanette Heaton</strong> - Forever Young by Bob Dylan. Reminds me of my beloved - lost too soon.</p> <p><strong>Laraine Hughes</strong> - Because by Mario Lanza. Walked down the aisle and played at my beloved husband's funeral. Started and ended our life together.</p> <p><strong>Rhonda Leaman</strong> - Somewhere Over The Rainbow from The Wizard of Oz. </p> <p><em>Image credits: Shutterstock </em></p>

Music

Placeholder Content Image

Hotel booking sites actually make it hard to get cheap deals, but there’s a way around it

<p><em><a href="https://theconversation.com/profiles/peter-martin-682709">Peter Martin</a>, <a href="https://theconversation.com/institutions/crawford-school-of-public-policy-australian-national-university-3292">Crawford School of Public Policy, Australian National University</a></em></p> <p>Booking a place to stay on holidays has become a reflex action.</p> <p>The first thing many of us do is open a site such as <a href="https://www.wotif.com/">Wotif</a>, <a href="https://au.hotels.com/?locale=en_AU">Hotels.com</a> or <a href="https://www.trivago.com.au/">trivago</a> (all of which are these days owned by the US firm <a href="https://www.accc.gov.au/media-release/accc-will-not-oppose-expedia%E2%80%99s-proposed-acquisition-of-wotif">Expedia</a>), or their only big competitor, <a href="https://www.booking.com/">Booking.com</a> from the Netherlands.</p> <p>Checking what rooms are available – anywhere – is wonderfully easy, as is booking, at what usually seems to be the lowest available price.</p> <p>But Australia’s Assistant Competition Minister Andrew Leigh is concerned there might be a reason the price seems to be the lowest available. It might be an <a href="https://ministers.treasury.gov.au/ministers/andrew-leigh-2022/media-releases/supporting-tourism-and-accommodation-providers-set-their">agreement not to compete</a>, or the fear of reprisals against hotel owners who offer better prices.</p> <h2>Agreements to not compete</h2> <p>Leigh has asked the treasury to investigate, and if that’s what it finds, it may be the booking sites have the perverse effect of keeping prices high, especially when the substantial fees they charge hotels are taken into account.</p> <p>For now, the treasury is seeking information. It has set a deadline of <a href="https://treasury.gov.au/consultation/c2022-338978">January 6</a> for hotel operators and booking sites to tell it:</p> <ul> <li> <p>the typical fees charged by online booking platforms</p> </li> <li> <p>the details of any agreements not to compete on price</p> </li> <li> <p>whether hotels that try to compete get ranked lower on booking sites.</p> </li> </ul> <p>What’s likely to come out of it is a ban on so-called price-parity clauses that prevent discounting, or a ban on “algorithmic punishment,” whereby hotels that do discount get pushed way down the rankings on the sites.</p> <p>But in the meantime, there are things we can do to get better prices, and they’ll help more broadly, as I’ll explain.</p> <h2>Flight Centre precedent</h2> <figure class="align-right zoomable"></figure> <p>Back in 2018, in a case that went all the way to the High Court, the Australian Competition and Consumer Commission (ACCC) forced <a href="https://www.accc.gov.au/media-release/flight-centre-ordered-to-pay-125-million-in-penalties">Flight Centre</a> to pay a penalty of A$12.5 million for attempting to induce airlines not to undercut it on ticket prices.</p> <p>That the ACCC eventually won the case might be an indication price-parity clauses are already illegal under Australian law. But it’s a difficult law to enforce. This is why the treasury is considering special legislation of the kind in force in France, Austria, Italy and Belgium.</p> <p>The ACCC has known for some time that Expedia and Booking.com have included clauses in their contracts preventing hotels offering the same room for any less than they do, even directly.</p> <p>Rather than take the big two to court, in 2016 the ACCC “reached agreement” with them to delete the clauses that prevented hotels offering better deals <a href="https://www.accc.gov.au/media-release/expedia-and-bookingcom-agree-to-reinvigorate-price-competition-by-amending-contracts-with-australian-hotels">face-to-face</a>.</p> <h2>The concession that conceded little</h2> <p>From then on, hotels were able to offer better deals than the sites over the phone or in person, but not on their own websites. Given we are less and less likely to walk in off the street or even use the phone to book a hotel, it wasn’t much of a concession.</p> <p>Then, in 2019, with the Commission under renewed pressure from hotel owners for another investigation, Expedia (but not Booking.com) reportedly <a href="https://www.smartcompany.com.au/business-advice/competition/expedia-allow-hotels-undercut-prices-online/">waived</a> the rest of the clauses, giving hotel owners the apparent freedom to advertise cheaper prices wherever they liked including on their own sites without fear of retribution.</p> <p>Except several appear to fear retribution, and very few seem to have jumped at the opportunity.</p> <h2>Algorithmic punishment</h2> <p>An Expedia spokesman gave an indication of what might be in store when he was quoted as saying a hotel that undercut Expedia might “find itself ranked <a href="https://www.smartcompany.com.au/business-advice/competition/expedia-allow-hotels-undercut-prices-online/">below its competitors</a>, just as it would if it had worse reviews or fewer high-quality pictures of its property”.</p> <p>Being ranked at the bottom of a site is much the same as not being ranked at all, something Leigh refers to as “algorithmic punishment”.</p> <p>It’s not at all clear the present law prevents it, which is why Leigh is open to the idea of legislating against it.</p> <p>Although you and I may not often think about what hotels are paying to be booked through sites such as Wotif and Booking.com, and although what’s charged to the hotel isn’t publicised, it appeard to be a large chunk of the cost of providing the room.</p> <p>One figure quoted is <a href="https://www.smartcompany.com.au/industries/tourism/online-travel-booking-fed-up-small-businesses-call-accc-action/">20%</a>. Leigh says hotel owners have told him the fees are in the “<a href="https://ministers.treasury.gov.au/ministers/andrew-leigh-2022/transcripts/interview-geraldine-doogue-abc-saturday-extra">double digits</a>”, something he says is quite a lot when you consider the sites don’t need to clean the toilets, change the sheets or help on the front desk.</p> <h2>‘Chokepoint capitalism’</h2> <p>What this seems to mean (the treasury will find out) is almost all bookings are more expensive than they need to be because firms that sit at the “<a href="https://theconversation.com/chokepoint-capitalism-why-well-all-lose-unless-we-stop-amazon-spotify-and-other-platforms-squeezing-cash-from-creators-194069">chokepoint</a>” between buyers and sellers are squeezing sellers.</p> <p>A hotel could always abandon the sites and offer much cheaper prices, but for a while – perhaps forever – it will be much harder to find.</p> <p>In their defence, the operators of the platforms might say they need to get the best offers from hotels in order to make it worthwhile for the operators to invest in their sites, an argument the treasury is inviting them to put.</p> <p>In the meantime, with some hotels reluctant to put their best rates on their websites, but with them perfectly able to offer better rates over the phone, there’s a fairly simple way we can all get a better deal – and help fix the broader problem by weight of numbers.</p> <p>If we look up the best deal wherever we want online, and then phone and ask for a better one (or a better room), we might well find we get it. We might be saving the owner a lot of money.</p> <p>Leigh reckons the more we do ring up, the more the sites might feel pressure to discount their own fees, helping bring prices down even before he starts to think about writing legislation.<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/196460/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><a href="https://theconversation.com/profiles/peter-martin-682709"><em>Peter Martin</em></a><em>, Visiting Fellow, <a href="https://theconversation.com/institutions/crawford-school-of-public-policy-australian-national-university-3292">Crawford School of Public Policy, Australian National 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/hotel-booking-sites-actually-make-it-hard-to-get-cheap-deals-but-theres-a-way-around-it-196460">original article</a>.</em></p>

Travel Trouble

Placeholder Content Image

Having the ‘right’ friends may hold the secret to building wealth, according to new study on socioeconomic ties

<p><em><a href="https://theconversation.com/profiles/brad-cannon-2216202">Brad Cannon</a>, <a href="https://theconversation.com/institutions/binghamton-university-state-university-of-new-york-2252">Binghamton University, State University of New York</a></em></p> <p>Having wealthy people in your social network significantly boosts the likelihood that you’ll participate in stock markets and savings plans, according to a new working paper I co-authored.</p> <p>My colleagues and I <a href="https://www.nber.org/system/files/working_papers/w32186/w32186.pdf">recently conducted research</a> on social finance to understand the ways in which social networks affect stock market participation and savings behavior. This is important because a substantial fraction of households in the U.S., particularly <a href="https://www.axios.com/2023/10/18/percentage-americans-own-stock-market-investing">lower-income families, do not own stocks</a>.</p> <p>Given that the total return to the U.S. stock market from 1980 through September 2024 has been over 12,000% – for example, US$1,000 <a href="https://ofdollarsanddata.com/sp500-calculator/">invested in the S&amp;P 500</a> in 1980 would be worth $121,350 today – this creates a disparity in wealth for those who participate relative to those who do not. Understanding why some people invest and others don’t is important for addressing social concerns such as rising inequality.</p> <p>In our study, we looked at <a href="https://academic.oup.com/ej/advance-article/doi/10.1093/ej/ueae074/7720537">social capital</a>, which is a measure of the value that comes from being in a group or having dense social networks. Researchers have found that social capital can have positive impacts on individuals and communities, spurring innovation, <a href="https://www.nature.com/articles/s41586-022-04996-4">economic prosperity</a> and better health outcomes. We used friendship data from Facebook to measure different aspects of social networks by county in the U.S. We combined this data with tax information from the Internal Revenue Service about investments and savings.</p> <p>We found that in counties where friendships with prosperous individuals are more common, investment and savings tend to be higher. Moreover, we found that having these friendships with wealthy individuals plays a more important role in shaping financial behaviors than two other aspects of social capital we looked at in our study: having a tight group of friends and living in a community with strong civic engagement.</p> <p>Of course, making wealthy friends alone does not guarantee you’ll invest or save more. But perhaps knowing people who invest makes it less daunting and fraught, particularly if those friends can serve as a resource and sounding board.</p> <p><em>“Friends with Benefits: Social Capital and Household Financial Behavior” was co-authored by <a href="https://www.marshall.usc.edu/personnel/david-hirshleifer">David Hirshleifer</a> and <a href="https://hankamer.baylor.edu/person/joshua-thornton">Joshua Thornton</a>.</em><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/239370/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/brad-cannon-2216202">Brad Cannon</a>, Assistant Professor of Finance, <a href="https://theconversation.com/institutions/binghamton-university-state-university-of-new-york-2252">Binghamton University, State University of New York</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/having-the-right-friends-may-hold-the-secret-to-building-wealth-according-to-new-study-on-socioeconomic-ties-239370">original article</a>.</em></p>

Money & Banking

Placeholder Content Image

‘A woman is not a baby-making machine’: a brief history of South Korea’s 4B movement – and why it’s making waves in America

<p><em><a href="https://theconversation.com/profiles/ming-gao-1496188">Ming Gao</a>, <a href="https://theconversation.com/institutions/australian-catholic-university-747">Australian Catholic University</a></em></p> <p>In South Korea, a growing number of young women are rejecting societal expectations of marriage, motherhood and heterosexual relationships, known as the “4B Movement” or the “4 Nos”.</p> <p>The “B” is a homophone for the Korean word <em>bi</em> (비/非), meaning “no”, representing the movement’s four principles: <em>bihon</em> (no marriage), <em>bichulsan</em> (no childbirth), <em>biyeonae</em> (no dating) and <em>bisekseu</em> (no sex).</p> <p>By refusing to marry, have children, engage in romance, or participate in sexual relationships with men, 4B feminists seek to redefine their lives outside the confines of traditional gender roles.</p> <p>In the wake of the reelection of Donald Trump, there has been <a href="https://www.abc.net.au/news/2024-11-10/donald-trump-win-4b-movement-male-supremacists-make-threats/104575732">increased interest</a> in the 4B movement from women in the United States.</p> <p>But what is the 4B Movement, where did it come from, and how is it reshaping the feminist landscape in South Korea and beyond?</p> <h2>Challenges facing young women</h2> <p>The 4B Movement reflects <a href="https://www.khan.co.kr/national/national-general/article/202004140938001">a broader dissatisfaction</a> among young South Korean women who face instability of housing, digital sexual violence, economic disparities and cultural pressures.</p> <p>It emerged in the mid- to late-2010s, following a surge of interest in feminism in South Korea, and spread primarily through women’s online communities.</p> <p>The roots of the 4B Movement lie in South Korea’s rapid economic transformation and the subsequent challenges it posed for younger generations of the 2000s.</p> <p>For young women, economic insecurity is compounded by systemic gender inequality. South Korea <a href="https://www.straitstimes.com/asia/east-asia/south-korea-s-gender-pay-gap-worst-in-oecd">consistently ranks</a> worst in the OECD for the gender wage gap, and social mobility remains limited.</p> <p>Against this backdrop, traditional life paths – marriage, childbearing and homemaking – have become less appealing.</p> <p>Living an alternative life without men emerged as a radical strategy for young digital feminists to challenge the rigid patriarchy in South Korea.</p> <p>The <a href="https://www.khan.co.kr/national/national-general/article/202405172212001">senseless killing</a> in 2016 of a woman in a train station toilet by a man in Seoul shocked the nation and fuelled the movement. Online platforms became spaces where women could share their frustrations, critique patriarchal norms and organise protests.</p> <p>During this period communities like radical feminist online groups gained traction. Among these was the <em><a href="https://www.bbc.com/korean/news-44329328">Tal-Corset</a></em> (escape the corset) movement, which encouraged women to reject societal beauty standards by foregoing makeup, cosmetic surgery and restrictive clothing.</p> <p>The 4B Movement built on this momentum, targeting not only beauty standards but the very institutions that sustain patriarchy.</p> <p>It collectively challenges the notion that women’s value lies in their ability to support men and sustain the family unit.</p> <h2>‘A woman is not a baby-making machine’</h2> <p>The birth rate in South Korea ranks among the <a href="https://worldpopulationreview.com/country-rankings/birth-rate-by-country">lowest in the world</a>. The government has long viewed this as a national crisis. Policies such as subsidised housing for newlyweds and tax incentives for families have sought to encourage marriage and childbearing.</p> <p>In 2016, the government launched a national <a href="https://www.womennews.co.kr/news/articleView.html?idxno=248514">pink birth map</a> visualising the number of women of reproductive age in each district. It sparked outrage. Women criticised it as reducing them to reproductive tools, proclaiming, “<a href="https://www.nocutnews.co.kr/news/4713565">my womb is not national property</a>” and “<a href="https://www.youtube.com/watch?v=6FsEWD1bi3E">a woman is not a baby-making machine</a>”.</p> <p>For many 4B feminists, these policies represent a stark example of how the state prioritises population growth over women’s autonomy. In response, the movement frames its rejection of marriage and motherhood as an act of political resistance.</p> <p>As one <a href="https://www.womennews.co.kr/news/articleView.html?idxno=111598">protest slogan</a> declared: “End population policies! Stop blaming women”.</p> <h2>Living on their own terms</h2> <p>Despite its growing influence, the 4B Movement faces significant challenges.</p> <p>The radical principles have sparked backlash, with critics labelling participants as selfish or anti-social. Swearing off men as a form of protest against patriarchal structures and traditional marital norms is sometimes (mis)interpreted as implicitly favouring <a href="https://brunch.co.kr/brunchbook/radsview2">lesbianism</a>, given its stance against heterosexual relationships.</p> <p>The movement has also attracted negative political attention. <a href="https://www.khan.co.kr/national/national-general/article/202004140938001">Lee Seung-cheon</a>, a 58-year-old Democratic Party candidate, pledged to introduce “measures to reject the 4B Movement” as part of his policy campaign in 2020.</p> <p>Yet 4B feminists remain steadfast in their vision of a future where women can live on their own terms. Their rejection of traditional life paths is not a retreat into isolation but an attempt to create new ways of being free from patriarchal constraints.</p> <p>As one participant noted, rejecting marriage allows women to envision futures beyond societal deadlines like “<a href="https://brunch.co.kr/@404homealone/34">a woman’s age has an expiration date</a>”.</p> <h2>An international movement</h2> <p>The 4B Movement’s radical critique of patriarchy has resonated internationally.</p> <p>4B Movement ideas are starting to strike a chord in the US. The movement’s core principles align with broader feminist critiques of patriarchy and capitalism, which have intensified in response to political developments such as Trump’s rhetoric and debates over reproductive rights.</p> <p>In the US, Trump’s presidency (and now his return) has been a flashpoint for feminist activism. Policies restricting access to abortion, coupled with an increase in conservative rhetoric around women’s rights, have galvanised movements that resist patriarchal structures.</p> <p>For American feminists, the 4B Movement offers a framework for resistance that goes beyond economic precarity. It provides a roadmap for rejecting political conflicts, focusing on reclaiming agency by prioritising autonomy over their own bodies and rights.</p> <p>6B4T is inspired by the 4B Movement and has gained particular attention <a href="https://weibo.com/1263977197/KaFZGjoG4">in China</a>. This version incorporates additional principles, including rejecting consumerism and fostering mutual aid among unmarried women.</p> <p>The spread of 4B ideas across Asia and beyond highlights the universality of feminist struggles. As the movement continues to evolve, its impact extends beyond South Korea, sparking conversations about gender, autonomy and the future of feminism.</p> <p>Whether embraced or contested, the 4B Movement forces society to confront uncomfortable truths about the cost of sustaining patriarchy – and perhaps the possibilities of living without it.</p> <hr /> <p><em>Correction: 6B4T is inspired by the 4B movement and gained attention in China; it did not originate in China.</em><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/243355/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/ming-gao-1496188">Ming Gao</a>, Research Scholar, Gender and Women's History Research Centre, <a href="https://theconversation.com/institutions/australian-catholic-university-747">Australian Catholic 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/a-woman-is-not-a-baby-making-machine-a-brief-history-of-south-koreas-4b-movement-and-why-its-making-waves-in-america-243355">original article</a>.</em></p>

Relationships

Placeholder Content Image

Your friend has been diagnosed with cancer. Here are 6 things you can do to support them

<p><em><a href="https://theconversation.com/profiles/stephanie-cowdery-2217734">Stephanie Cowdery</a>, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a>; <a href="https://theconversation.com/profiles/anna-ugalde-2232654">Anna Ugalde</a>, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a>; <a href="https://theconversation.com/profiles/trish-livingston-163686">Trish Livingston</a>, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a>, and <a href="https://theconversation.com/profiles/victoria-white-1888110">Victoria White</a>, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a></em></p> <p>Across the world, <a href="https://www.who.int/news/item/01-02-2024-global-cancer-burden-growing--amidst-mounting-need-for-services">one in five</a> people are diagnosed with cancer during their lifetime. By age 85, almost <a href="https://www.cancer.org.au/cancer-information/what-is-cancer/facts-and-figures">one in two</a> Australians will be diagnosed with cancer.</p> <p>When it happens to someone you care about, it can be hard to know what to say or how to help them. But providing the right support to a friend can make all the difference as they face the emotional and physical challenges of a new diagnosis and treatment.</p> <p>Here are six ways to offer meaningful support to a friend who has been diagnosed with cancer.</p> <h2>1. Recognise and respond to emotions</h2> <p>When facing a cancer diagnosis and treatment, it’s normal to experience a range of <a href="https://www.canceraustralia.gov.au/impacted-by-cancer/emotions#:%7E:text=It's%20likely%20that%20feelings%20will,these%20feelings%20ease%20with%20time">emotions</a> including fear, anger, grief and sadness. Your friend’s moods may fluctuate. It is also common for feelings to <a href="https://link.springer.com/article/10.1007/s00520-014-2492-9">change over time</a>, for example your friend’s anxiety may decrease, but they may feel more depressed.</p> <p>Some friends may want to share details while others will prefer privacy. Always ask permission to raise sensitive topics (such as changes in physical appearance or their thoughts regarding fears and anxiety) and don’t make assumptions. It’s OK to tell them you feel awkward, as this acknowledges the challenging situation they are facing.</p> <p>When they feel comfortable to talk, follow their lead. Your support and willingness <a href="https://www.cancervic.org.au/get-support/stories/what-to-say-and-not-say.html">to listen without judgement</a> can provide great comfort. You don’t have to have the answers. Simply acknowledging what has been said, providing your full attention and being present for them will be a great help.</p> <h2>2. Understand their diagnosis and treatment</h2> <p><a href="https://onlinelibrary.wiley.com/doi/full/10.1002/pon.4722">Understanding</a> your friend’s diagnosis and what they’ll go through when being <a href="https://www.cancer.org/cancer/caregivers/what-a-caregiver-does/treatment-timeline.html">treated</a> may be helpful.</p> <p>Being informed can reduce your own worry. It may also help you to listen better and reduce the amount of explaining your friend has to do, especially when they’re tired or overwhelmed.</p> <p>Explore reputable sources such as the <a href="https://www.cancer.org.au/">Cancer Council website</a> for accurate information, so you can have meaningful conversations. But keep in mind your friend has a trusted medical team to offer personalised and accurate advice.</p> <h2>3. Check in regularly</h2> <p>Cancer treatment can be isolating, so regular check-ins, texts, calls or visits can help your friend feel less alone.</p> <p>Having a normal conversation and sharing a joke can be very welcome. But everyone copes with cancer differently. Be patient and flexible in your support – some days will be harder for them than others.</p> <p>Remembering key dates – such as the next round of chemotherapy – can help your friend feel supported. Celebrating milestones, including the end of treatment or anniversary dates, may boost morale and remind your friend of positive moments in their cancer journey.</p> <p>Always ask if it’s a good time to visit, as your friend’s immune system <a href="https://www.cancerresearchuk.org/about-cancer/what-is-cancer/body-systems-and-cancer/the-immune-system-and-cancer#:%7E:text=to%20fight%20cancer-,Cancer%20and%20treatments%20may%20weaken%20immunity,high%20dose%20of%20steroids">may be compromised</a> by their cancer or treatments such as chemotherapy or radiotherapy. If you’re feeling unwell, it’s best to postpone visits – but they may still appreciate a call or text.</p> <h2>4. Offer practical support</h2> <p>Sometimes the best way to show your care is through practical support. There may be different ways to offer help, and what your friend needs might change at the beginning, during and after treatment.</p> <p>For example, you could offer to pick up prescriptions, drive them to appointments so they have transport and company to debrief, or wait with them at appointments.</p> <p>Meals will always be welcome. However it’s important to remember cancer and its treatments may <a href="https://www.cancer.gov/about-cancer/treatment/side-effects/nutrition#effects-of-cancer-treatment-on-nutrition">affect</a> taste, smell and appetite, as well as your friend’s ability to eat enough or absorb nutrients. You may want to check first if there are particular foods they like. <a href="https://www.cancervic.org.au/downloads/resources/booklets/nutrition-cancer.pdf">Good nutrition</a> can help boost their strength while dealing with the side effects of treatment.</p> <p>There may also be family responsibilities you can help with, for example, babysitting kids, grocery shopping or taking care of pets.</p> <h2>5. Explore supports together</h2> <p>Studies <a href="https://pubmed.ncbi.nlm.nih.gov/35834503/">have shown</a> mindfulness practices can be an effective way for people to manage anxiety associated with a cancer diagnosis and its treatment.</p> <p>If this is something your friend is interested in, it may be enjoyable to explore classes (either online or in-person) together.</p> <p>You may also be able to help your friend connect with organisations that provide emotional and practical help, such as the Cancer Council’s <a href="https://www.cancer.org.au/support-and-services/cancer-council-13-11-20">support line</a>, which offers free, confidential information and support for anyone affected by cancer, including family, friends and carers.</p> <p><a href="https://www.researchgate.net/publication/5659099_Systematic_review_of_peer-support_programs_for_people_with_cancer">Peer support groups</a> can also reduce your friend’s feelings of isolation and foster shared understanding and empathy with people who’ve gone through a similar experience. GPs <a href="https://pubmed.ncbi.nlm.nih.gov/34333571/">can help</a> with referrals to support programs.</p> <h2>6. Stick with them</h2> <p>Be committed. Many people feel <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC11120751/">isolated</a> after their treatment. This may be because regular appointments have reduced or stopped – which can feel like losing a safety net – or because their relationships with others have changed.</p> <p>Your friend may also experience emotions such as worry, lack of confidence and uncertainty as they adjust to a <a href="https://www.cancer.gov/about-cancer/coping/survivorship/new-normal">new way of living</a> after their treatment has ended. This will be an important time to support your friend.</p> <p>But don’t forget: looking after <a href="https://www.healthdirect.gov.au/caring-for-someone-with-cancer">yourself</a> is important too. Making sure you eat well, sleep, exercise and have emotional support will help steady you through what may be a challenging time for you, as well as the friend you love.</p> <p><a href="https://www.deakin.edu.au/faculty-of-health/research/cancer-carer-hub">Our research</a> team is developing new programs and resources to support carers of people who live with cancer. While it can be a challenging experience, it can also be immensely rewarding, and your small acts of kindness can make a big difference.<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/239844/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/stephanie-cowdery-2217734">Stephanie Cowdery</a>, Research Fellow, Carer Hub: A Centre of Excellence in Cancer Carer Research, Translation and Impact, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a>; <a href="https://theconversation.com/profiles/anna-ugalde-2232654">Anna Ugalde</a>, Associate Professor &amp; Victorian Cancer Agency Fellow, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a>; <a href="https://theconversation.com/profiles/trish-livingston-163686">Trish Livingston</a>, Distinguished Professor &amp; Director of Special Projects, Faculty of Health, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a>, and <a href="https://theconversation.com/profiles/victoria-white-1888110">Victoria White</a>, Professor of Pyscho-Oncology, School of Psychology, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin 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/your-friend-has-been-diagnosed-with-cancer-here-are-6-things-you-can-do-to-support-them-239844">original article</a>.</em></p>

Caring

Placeholder Content Image

Readers response: What celebrity do you think would make a great friend, and why?

<p>When it comes to celebrities, everyone has their favourites, their crushes, and those they'd rather steer clear of. </p> <p>We asked our readers what celebrity they think they would be good friends with, and the response was overwhelming. Here's what they said. </p> <p><strong>Judy Yannopoulos</strong> - Keanu Reeves. A true honest person with a good heart.</p> <p><strong>Jenny Maclean</strong> - Steven Fry. He’s honest and kind and so very intelligent.</p> <p><strong>Jeff-Lyn Bloom</strong> - Tom Hanks. He is so down to earth. Doesn’t put on airs.</p> <p><strong>Jan Totti</strong> - John Farnham, because he’s down to earth and there’s no pretences. He seems just a lovely honest person. He’s an amazing Australian singer.</p> <p><strong>Caz McDougall</strong> - Michael Sheen and David Tennant.</p> <p><strong>Karen Maberly</strong> - Judi Dench. Seems like a good communicator, sharp mind and full of fun, and not full of herself!!</p> <p><strong>Cheryl Cunningham</strong> - Denzel Washington. Totally honest and decent human.</p> <p><strong>Rhonda Moffitt</strong> - Maggie Beer. She treasures family &amp; others. Always smiling, Maggie I think would be great company.</p> <p><strong>Lisa Drury Hudson</strong> - Audrey Hepburn, for her compassion, strength, fighting for children's rights and empathy. What a loss.</p> <p><strong>Bob Wilkinson</strong> - Hugh Jackson and Chris Hemsworth as they both seem like down to earth nice people.</p> <p><em>Image credits: Shutterstock </em></p>

Relationships

Placeholder Content Image

Beloved Friends, Tootsie and Mr Mom star passes away

<p>Teri Garr, the beloved actress known for her iconic roles in classic films such as <em>Young Frankenstein </em>and <em>Tootsie </em>and her appearances on <em>Friends</em>, has passed away at the age of 79.</p> <p>Her death, confirmed by her publicist Heidi Schaeffer, occurred on Tuesday in Los Angeles, surrounded by family and friends. Garr's passing follows a long battle with multiple sclerosis, a condition she publicly disclosed in 2002 to raise awareness about the disease and its impact on daily life.</p> <p><span style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;">Born Terry Ann Garr in Lakewood, Ohio, in 1944, Teri grew up in a theatrical family; her father was a vaudeville performer and her mother a Rockette. This background set the stage for Garr's early career, which began as a background dancer in Elvis Presley films during the 1960s. Her breakout role came in 1974 when she starred as Inga, the charming lab assistant to Gene Wilder's character in Mel Brooks' </span><em style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;">Young Frankenstein</em><span style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;">. The film became a cornerstone of American comedy, showcasing Garr's unique blend of humour and warmth.</span></p> <p>Garr further solidified her place in cinematic history with her performance in <em>Tootsie</em> in 1982, where she portrayed the vulnerable actress friend of Dustin Hoffman’s character. This role earned her an Academy Award nomination for Best Supporting Actress. Critics praised her ability to balance comedy with emotional depth, with film critic Pauline Kael calling her "the funniest neurotic dizzy dame on the screen" at that time.</p> <p>Despite her success, Garr faced significant challenges due to her health. She was diagnosed with multiple sclerosis during the filming of <em>Tootsie</em>, a struggle she detailed in her memoir, <em>Speedbumps: Flooring It Through Hollywood</em>. In it, she described MS as a "sneaky disease," one that complicated her life and career but did not define it. “My body had a trick or two up its sleeve," she wrote. "A stumble here, a tingling finger there. I was trained as a dancer and knew better than to indulge the random aches and pains that visited now and then. Being a successful Hollywood actress may be challenging, but little did I know that the very body that had always been my calling card would betray me.”</p> <p>Garr became an advocate for the National Multiple Sclerosis Society, using her platform to inspire others facing similar challenges.</p> <p>Throughout her career, Garr appeared in over 140 film and TV projects. She was known for her roles in <em>Mr. Mom</em>, <em>Close Encounters of the Third Kind</em>, and various television shows including <em>Friends</em>, where she played Phoebe's birth mother. Her playful spirit and comedic timing made her a favourite among audiences and fellow actors alike.</p> <p>In recent years, Garr had limited her appearances due to health issues but remained an influential figure in Hollywood. Tributes have poured in from fans and colleagues alike, celebrating her legacy as a pioneer for women in comedy and an inspiration for those battling chronic illnesses. </p> <p>Teri Garr leaves behind a rich legacy filled with laughter and heart. She is survived by her daughter Molly O'Neil and grandson Tyryn. Her contributions to film and television will be remembered fondly by generations to come.</p> <p><em>Images: CNN \ Fox Studios</em></p>

Caring

Placeholder Content Image

Colin Farrell completes marathon while pushing friend in wheelchair

<p>Colin Farrell has completed the Dublin Marathon by pushing his friend in a wheelchair across the finish line. </p> <p>The 48-year-old actor ran the final 4 kilometres of the 42km race while pushing his friend Emma Fogarty, who lives with a rare skin condition, to the end of the race. </p> <p>Back home in his native Ireland, Farrell ran the marathon to raise money for DEBRA, an Irish charity supporting people who, like Fogarty, have the incurable genetic condition epidermolysis bullosa (EB) – also known as butterfly skin.</p> <p>Fogarty is Ireland's oldest surviving person with the condition, and after reaching a milestone of turning 40 in June, her and Farrell pledged to complete the race together. </p> <p>According to the<em> PA Media</em> news agency, Emma was born with a severe form of the condition, as she was born with no skin on her left foot and right arm and can develop very painful blisters from even the slightest touch.</p> <p>Farrell told <em>PA</em>, "I have known Emma for many years and she epitomises bravery, she is what courage and pure determination are all about."</p> <p>"That run was nothing compared to the pain she is forced to endure every single day, even though she doesn't show it."</p> <p>"It was an honour to see her waiting for me with 4km to go, each of those representing a decade of her life, and to do the final stretch together. I'll never forget it."</p> <p>Also speaking to <em>PA</em>, Fogarty said, "This was a dream come true for me and I want to thank Colin, who has been the most supportive, generous and loyal friend I could wish for."</p> <p>"He has always shown his compassion and empathy for people living with EB and is a true champion in my eyes. Running a marathon is never easy but once he committed to it there was no going back, he is a man of his word."</p> <p>Fogarty and Farrell originally set out to raise €400,000 ($660,000 AUD) for the charity but now aim to hit the million-euro mark ($1.6 million AUD), after the pair completed the marathon in just over four hours. </p> <p><em>Image credits: CNN</em></p>

Caring

Placeholder Content Image

What washing machine settings can I use to make my clothes last longer?

<p><em><a href="https://theconversation.com/profiles/alessandra-sutti-1513345">Alessandra Sutti</a>, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a>; <a href="https://theconversation.com/profiles/amol-patil-1513347">Amol Patil</a>, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a>, and <a href="https://theconversation.com/profiles/maryam-naebe-1513346">Maryam Naebe</a>, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a></em></p> <p>Orbiting 400 kilometres above Earth’s surface, the astronauts on the International Space Station live a pretty normal social life, if not for one thing: they happily wear their unwashed clothes <a href="https://www.nasa.gov/centers-and-facilities/glenn/nasa-glenn-interns-take-space-washing-machine-designs-for-a-spin/">for days and weeks at a time</a>. They can’t do their laundry <a href="https://www.esa.int/Enabling_Support/Space_Engineering_Technology/Keeping_your_underwear_clean_on_the_Moon">just yet</a> because water is scarce up there.</p> <p>But down here on Earth, washing clothes is a large part of our lives. <a href="https://bigee.net/media/filer_public/2013/03/28/bigee_domestic_washing_machines_worldwide_potential_20130328.pdf">It’s estimated</a> that a volume of water equivalent to 21,000 Olympic swimming pools is used every day for domestic laundry worldwide.</p> <p>Fibres from our clothes make their way into the environment via the air (during use or in the dryer), water (washing) and soil (lint rubbish in landfill). Most of this fibre loss is invisible – we often only notice our favourite clothing is “disappearing” when it’s too late.</p> <p>How can you ensure your favourite outfit will outlast your wish to wear it? Simple question, complex answer.</p> <h2>Washing machines are not gentle</h2> <p>When you clean the filters in your washing machine and dryer, how often do you stop to think that the lint you’re holding <a href="https://theconversation.com/uk-laundry-releases-microfibres-weighing-the-equivalent-of-1-500-buses-each-year-199712"><em>was</em>, in fact, your clothes</a>?</p> <p>Laundering is harsh on our clothes, and <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0250346">research confirms this</a>. Several factors play a role: the type of washing machine, the washing cycle, detergents, temperature, time, and the type of fabric and yarn construction.</p> <p>There are two types of domestic washing machines: top-loader and front-loader. Mechanical agitation (the way the machine moves the clothes around) is one of the things that helps ease dirt off the fabric.</p> <p>Top-loaders have a vertical, bucket-like basket with a paddle, which sloshes clothes around in a large volume of water. Front-loaders have a horizontal bucket which rotates, exposing the clothes to a smaller volume of water – it takes advantage of gravity, not paddles.</p> <p>Top-loading machines <a href="https://link.springer.com/article/10.1007/s12541-010-0047-7">tend to be more aggressive</a> towards fabrics than front-loaders due to the different mechanical action and larger volumes of water.</p> <p>Washing machine panels also present many choices. Shorter, low-temperature programs <a href="https://clevercare.info/more-eco-temperature-tips">are usually sufficient for everyday stains</a>. Choose longer or <a href="https://iprefer30.eu/animations/UK/wash-brochure-uk.pdf">high-temperature programs</a> only for clothing you have concerns about (healthcare uniforms, washable nappies, etc.).</p> <p>Generally, washing machine programs are carefully selected combinations of water volume, agitation intensity and temperature recommended by the manufacturer. They take into consideration the type of fabric and its level of cleanliness.</p> <p>Select the wrong program and you can say goodbye to your favourite top. For example, high temperatures or harsh agitation may cause some fibres to weaken and break, causing holes in the garment.</p> <h2>Some fabrics lose fibres more easily than others</h2> <p>At a microscopic level, the fabric in our clothes is made of yarns – individual fibres twisted together. The nature and length of the fibres, the way they are twisted and the way the yarns form the fabric can determine how many fibres will be lost during a wash.</p> <p>In general, if you want to lose fewer fibres, you should wash less frequently, but some fabrics are affected more than others.</p> <p>Open fabric structures (knits) with loose yarns <a href="https://www.nature.com/articles/s41598-021-98836-6">can lose more fibres</a> than tighter ones. Some sports clothing, like running shirts, are made of continuous filament yarn. These fibres are less likely to come loose in the wash.</p> <p>Cotton fibres are only a few centimetres long. Twisted tightly together into a yarn, they can still escape.</p> <p>Wool fibres are also short, but have an additional feature: scales, which make wool clothes much more delicate. Wool fibres can come loose like cotton ones, but also tangle with each other during the wash due to their scales. This last aspect is what causes wool garments to shrink when <a href="https://journals.sagepub.com/doi/abs/10.1177/004051756403400303">exposed to heat</a> and agitation.</p> <h2>Go easy on the chemicals</h2> <p>The type of detergent and other products you use also makes a difference.</p> <p>Detergents contain a soap component, enzymes to make stains easier to remove at low temperature, and fragrances. Some contain harsher compounds, such as bleaching or whitening agents.</p> <p>Modern detergents are very effective at <a href="https://www.choice.com.au/home-and-living/laundry-and-cleaning/laundry-detergents/review-and-compare/laundry-detergents">removing stains such as food</a>, and you don’t need to use much.</p> <p>An incorrect choice of wash cycles, laundry detergent and bleaching additives could cause disaster. Certain products, like bleach, can <a href="https://site.extension.uga.edu/textiles/textile-basics/understand-your-fibers/">damage some fibres like wool and silk</a>.</p> <p>Meanwhile, research on <a href="https://www.sciencedirect.com/science/article/pii/S0269749120366872?via%3Dihub">fabric softeners and other treatments</a> <a href="https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0233332&amp;type=printable">continues</a> – there’s no one-size-fits-all answer about their potential impact on our clothes.</p> <h2>Just skip laundry day</h2> <p>So, how to ensure your clothes last longer? The main tip is to wash them less often.</p> <p>When it’s time for a wash, carefully read and follow the care labels. In the future, our washing machines will <a href="https://www.teknoscienze.com/tks_article/trends-in-laundry-by-2030/">recognise fabrics and select the wash cycle</a>. For now, that’s our responsibility.</p> <p>And the next time you throw your shirt into the dirty laundry basket, stop. Think of the astronauts orbiting above Earth and ask yourself: if they can go without clean laundry for a few days, maybe I can too? (Although we don’t recommend just burning your dirty undies, either.)<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/224064/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <figure><iframe src="https://www.youtube.com/embed/C1j6KLP492E?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <p><em><a href="https://theconversation.com/profiles/alessandra-sutti-1513345">Alessandra Sutti</a>, Associate Professor, Institute for Frontier Materials, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a>; <a href="https://theconversation.com/profiles/amol-patil-1513347">Amol Patil</a>, Research Engineer, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a>, and <a href="https://theconversation.com/profiles/maryam-naebe-1513346">Maryam Naebe</a>, Associate professor, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin 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/what-washing-machine-settings-can-i-use-to-make-my-clothes-last-longer-224064">original article</a>.</em></p>

Home & Garden

Placeholder Content Image

Music and dementia: researchers are still making discoveries about how songs can help sufferers

<p><em><a href="https://theconversation.com/profiles/rebecca-atkinson-1288605">Rebecca Atkinson</a>, <a href="https://theconversation.com/institutions/anglia-ruskin-university-1887">Anglia Ruskin University</a> and <a href="https://theconversation.com/profiles/ming-hung-hsu-2215063">Ming-Hung Hsu</a>, <a href="https://theconversation.com/institutions/anglia-ruskin-university-1887">Anglia Ruskin University</a></em></p> <p>Music is woven into the fabric of our everyday lives. Whether it’s lifting our spirits, pushing us to run faster or soothing us to sleep, we can all <a href="https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2021.713818/full">recognise its power</a>. So it’s no wonder it is increasingly being used in medical treatment.</p> <p>As well as proving very useful in <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3863265/">cancer treatment</a>, managing <a href="https://www.sciencedirect.com/science/article/pii/S1526590022000153">chronic pain</a> and even helping the brain <a href="https://www.frontiersin.org/articles/10.3389/fnhum.2014.00245/full">recover after a stroke</a>, researchers have also been making great strides in using music to help patients with dementia.</p> <p>It reduces patients’ <a href="https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD003477/full">anxiety and depression</a>, and <a href="https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(23)00401-7/fulltext">improves wellbeing</a> both for them and their carers <a href="https://www.cambridge.org/core/journals/the-british-journal-of-psychiatry/article/individual-music-therapy-for-depression-randomised-controlled-trial/A1CD72904929CECCB956F4F3B09605AF">by enhancing</a> everyone’s ability to adapt and cope with adversity or stress.</p> <p><a href="https://www.bamt.org">Music therapy</a> in the form of playing, singing or listening to music can also have a <a href="https://journals.sagepub.com/doi/abs/10.1177/1362361309105660">positive effect</a> on cognitive function – particularly for <a href="https://link.springer.com/article/10.1186/1472-6882-10-39">older adults</a> either with dementia or memory issues.</p> <p>So why does music appear to have such a powerful effect for people with dementia?</p> <h2>Music and the brain</h2> <p>About a decade ago, <a href="https://www.sciencedirect.com/science/article/abs/pii/S1053811911013000">researchers discovered that</a> when people listened to music, multiple areas of the brain were involved in processing it. These included the limbic (which processes emotions and memory), cognitive (involved with perception, learning and reaction) and motor areas (responsible for voluntary movement). This challenged preconceptions that music was processed more narrowly in the brain – and helped explain why it has such a unique neurological impact.</p> <p>Not only that, research has shown that music might help <a href="https://www.sciencedirect.com/science/article/abs/pii/S0306987708002880">regenerate the brain</a> and its connections. Many <a href="https://www.nhs.uk/conditions/dementia/about-dementia/causes/">causes of dementia</a> centre around cell death in the brain, raising the possibility that music could help people with dementia by mending or strengthening damaged neural connections and cells.</p> <p>It’s not just any music that has a regenerative effect on the brain, though. <a href="https://www.frontiersin.org/articles/10.3389/fnhum.2016.00103/full">Familiar and favourite music</a> has been shown to have the biggest impact on the way we feel, and is closely linked with memory and emotions. This is because listening to our favourite songs <a href="https://www.nature.com/articles/nn.2726">releases feel-good hormones</a> that give us a sense of pleasure. Curated music playlists of favourite music could be the key in helping us deal with the <a href="https://journals.sagepub.com/doi/full/10.1177/10298649211030318">stress of everyday life</a>.</p> <p>This is relevant to Alzheimer’s and other forms of dementia because researchers have discovered that parts of the brain linked with <a href="https://academic.oup.com/brain/article/138/8/2438/330016">musical memories</a> are less affected by these conditions than other areas of the brain. This explains why memories and experiences that are linked to <a href="https://link.springer.com/article/10.14283/jpad.2018.19">favourite music</a> are often preserved for people with such conditions.</p> <p>Listening to music can also <a href="https://pubmed.ncbi.nlm.nih.gov/34346261/">help manage</a> their experiences of distress, agitation and “<a href="https://www.alzheimers.org.uk/about-dementia/symptoms-and-diagnosis/symptoms/sundowning">sundowning</a>” – where a person is more confused in the afternoon and evening.</p> <p>In a <a href="https://www.sciencedirect.com/science/article/pii/S0197457224002209?utm_campaign=STMJ_219742_AUTH_SERV_PA&amp;utm_medium=email&amp;utm_acid=224973760&amp;SIS_ID=&amp;dgcid=STMJ_219742_AUTH_SERV_PA&amp;CMX_ID=&amp;utm_in=DM500444&amp;utm_source=AC_">small study</a> conducted by us and our colleagues at the Cambridge Institute for Music Therapy Research, we showed just how great of an effect listening to music can have for people with dementia. We found that when people with dementia repeatedly listened to their favourite music, their heart rate and movements changed in direct response.</p> <p>This showed that people’s physical responses were affected by musical features like rhythm and arrangement. Their heart rate also changed when they sang along to music, or when they began reminiscing about old memories or stories while listening to a song or thinking about the music. These changes are important because they show how music affects movement, emotions and memory recall.</p> <p>Studies have also shown that during and after listening to music, people with dementia <a href="https://www.mdpi.com/2076-3425/13/7/1103">experienced less agitation</a>, aggression and anxiety, and their general mood was improved. They even needed less medication when they had regular music sessions.</p> <p>Other researchers have even begun testing the effects of <a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/gps.4721?casa_token=VufeKQP7aNsAAAAA%3AMSOgiwUQYKqmmrLsUFv9glmSnc5BMxoqeMmmt3HX4BJX2Fs2UKeXjnN2850o1Umz0j1NvmrpQ3W3Pw">music training programmes</a> to support cognition for people with dementia. Results have been promising so far – with adults in the study showing improved executive functioning (problem solving, emotion regulation and attention) compared to those who took part in just physical exercise.</p> <p>So, music is likely to continue to be a useful medical treatment for people with dementia. But based on what we know so far, it’s important that it comes from the patient’s own music collection – and is used alongside other management techniques such as using drugs that can slow the progression of dementia or help manage symptoms to support self-care and wellbeing.<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/239446/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/rebecca-atkinson-1288605">Rebecca Atkinson</a>, Researcher in Music Therapy, <a href="https://theconversation.com/institutions/anglia-ruskin-university-1887">Anglia Ruskin University</a> and <a href="https://theconversation.com/profiles/ming-hung-hsu-2215063">Ming-Hung Hsu</a>, Senior Research Fellow, Music Therapy, <a href="https://theconversation.com/institutions/anglia-ruskin-university-1887">Anglia Ruskin 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/music-and-dementia-researchers-are-still-making-discoveries-about-how-songs-can-help-sufferers-239446">original article</a>.</em></p>

Mind

Placeholder Content Image

Scurvy is largely a historical disease but there are signs it’s making a comeback

<p><em><a href="https://theconversation.com/profiles/lauren-ball-14718">Lauren Ball</a>, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a></em></p> <p>Scurvy is often considered a historical ailment, conjuring images of sailors on long sea voyages suffering from a lack of fresh fruit and vegetables.</p> <p>Yet doctors in developed countries have recently reported treating cases of scurvy, including Australian doctors who <a href="https://casereports.bmj.com/lookup/doi/10.1136//bcr-2024-261082">reported their findings</a> today in the journal <a href="https://casereports.bmj.com/">BMJ Case Reports</a>.</p> <h2>What is scurvy?</h2> <p>Scurvy is a disease caused by a severe deficiency of vitamin C (ascorbic acid), which is essential for the production of collagen. This protein helps maintain the health of skin, blood vessels, bones and connective tissue.</p> <p>Without enough vitamin C, the body cannot properly repair tissues, heal wounds, or fight infections. This can lead to a range of <a href="https://www.degruyter.com/document/doi/10.1515/9781400884544/html">symptoms</a> including:</p> <ul> <li>fatigue and weakness</li> <li>swollen, bleeding gums or loose teeth</li> <li>joint and muscle pain and tenderness</li> <li>bruising easily</li> <li>dry, rough or discoloured skin (reddish or purple spots due to bleeding under the skin)</li> <li>cuts and sores take longer to heal</li> <li>anaemia (a shortage of red blood cells, leading to further fatigue and weakness)</li> <li>increased susceptibility to infections.</li> </ul> <h2>It historically affected sailors</h2> <p>Scurvy was <a href="https://pubmed.ncbi.nlm.nih.gov/23183299/">common</a> from the 15th to 18th centuries, when naval sailors and other explorers lived on rations or went without fresh food for long periods. You might have heard some of these milestones in the history of the disease:</p> <ul> <li> <p><strong>in 1497-1499</strong>, Vasco da Gama’s crew <a href="https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(03)13131-5/fulltext#:%7E:text=After%205%20weeks%20at%20sea,lemons%2C%20clearing%20up%20the%20condition">suffered severely from scurvy</a> during their expedition to India, with a large portion of the crew dying from it</p> </li> <li> <p><strong>from the 16th to 18th centuries</strong>, scurvy was rampant among European navies and explorers, affecting notable figures such as <a href="https://www.jstor.org/stable/26305889">Ferdinand Magellan and Sir Francis Drake</a>. It was considered one of the greatest threats to sailors’ health during long voyages</p> </li> <li> <p><strong>in 1747</strong>, British naval surgeon <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC3536506/">James Lind</a> is thought to have conducted one of the first clinical trials, demonstrating that citrus fruit could prevent and cure scurvy. However, it took several decades for his findings to be widely implemented</p> </li> <li> <p><strong>in 1795</strong>, the British Royal Navy officially adopted the <a href="https://journals.sagepub.com/doi/pdf/10.1177/003591572601902602">practice of providing lemon or lime juice to sailors</a>, dramatically reducing the number of scurvy cases.</p> </li> </ul> <h2>Evidence of scurvy re-emerging</h2> <p>In the new case report, doctors in Western Australia <a href="https://casereports.bmj.com/lookup/doi/10.1136//bcr-2024-261082">reported</a> treating a middle-aged man with the condition. In a separate case report, doctors in Canada <a href="https://www.cmaj.ca/content/196/33/E1144">reported</a> treating a 65-year old woman.</p> <p>Both patients presented with leg weakness and compromised skin, yet the doctors didn’t initially consider scurvy. This was based on the <a href="https://www.mdpi.com/2072-6643/12/7/1963">premise</a> that there is abundant vitamin C in our modern food supply, so deficiency should not occur.</p> <p>On both occasions, treatment with high doses of vitamin C (1,000mg per day for at least seven days) resulted in improvements in symptoms and eventually a full recovery.</p> <p>The authors of both case reports are concerned that if scurvy is left untreated, it could lead to inflamed blood vessels (<a href="https://www.mayoclinic.org/diseases-conditions/vasculitis/symptoms-causes/syc-20363435">vasculitis</a>) and potentially <a href="https://www.sciencedirect.com/science/article/pii/S2211419X11001625">cause fatal bleeding</a>.</p> <p>Last year, a major New South Wales hospital undertook a <a href="https://www.mja.com.au/journal/2023/219/10/serum-vitamin-c-status-people-new-south-wales-retrospective-analysis-findings">chart review</a>, where patient records are reviewed to answer research questions.</p> <p>This found vitamin C deficiency was common. More than 50% of patients who had their vitamin C levels tested had either a modest deficiency (29.9%) or significant deficiency (24.5%). Deficiencies were more common among patients from rural and lower socioeconomic areas.</p> <p>Now clinicians are <a href="https://onlinelibrary.wiley.com/doi/full/10.5694/mja2.52146">urged to</a> consider vitamin C deficiency and scurvy as a potential diagnosis and involve the support of a dietitian.</p> <h2>Why might scurvy be re-emerging?</h2> <p>Sourcing and consuming nutritious foods with sufficient vitamin C is unfortunately <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC10260575/">still an issue</a> for some people. Factors that increase the risk of vitamin C deficiency include:</p> <ul> <li> <p><strong>poor diet</strong>. People with restricted diets – due to poverty, food insecurity or dietary choices – <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC10296835/">may not get enough</a> vitamin C. This includes those who rely heavily on processed, nutrient-poor foods rather than fresh produce</p> </li> <li> <p><strong>food deserts</strong>. In areas where access to fresh, affordable fruits and vegetables is limited (often referred to as food deserts), people may <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC9587807/">unintentionally suffer from a vitamin C deficiency</a>. In some parts of developing countries such as India, lack of access to fresh food is <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC10296835/">recognised as a risk</a> for scurvy</p> </li> <li> <p><strong>the cost-of-living crisis</strong>. With greater numbers of people <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC10935407/">unable to pay for fresh produce</a>, people who limit their intake of fruits and vegetables may develop nutrient deficiencies, including scurvy</p> </li> </ul> <ul> <li> <p><strong>weight loss procedures and medications</strong>. Restricted dietary intake due to weight loss surgery or weight loss medications may <a href="https://onlinelibrary.wiley.com/doi/full/10.1002/oby.24067">lead to nutrient deficiencies</a>, such as in this <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC3320124/">case report of scurvy</a> from Denmark</p> </li> <li> <p><strong>mental illness and eating disorders</strong>. Conditions such as depression and anorexia nervosa can lead to severely restricted diets, increasing the risk of scurvy, such as in this <a href="https://pubmed.ncbi.nlm.nih.gov/32291151/">case report</a> from 2020 in Canada</p> </li> <li> <p><strong>isolation</strong>. Older adults, especially those who live alone or in nursing homes, may have <a href="https://doi.org/10.1136//bcr-2024-261082">difficulty</a> preparing balanced meals with sufficient vitamin C</p> </li> <li> <p><strong>certain medical conditions</strong>. People with digestive disorders, malabsorption issues, or those on restrictive medical diets (due to severe allergies or intolerances) can develop scurvy if they are <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC8248877/">unable to absorb or consume enough vitamin C</a>.</p> </li> </ul> <h2>How much vitamin C do we need?</h2> <p>Australia’s dietary guidelines <a href="https://www.eatforhealth.gov.au/nutrient-reference-values/nutrients/vitamin-c">recommend</a> adults consume 45mg of vitamin C (higher if pregnant or breastfeeding) each day. This is roughly the amount found in half an orange or half a cup of strawberries.</p> <p>When more vitamin C is <a href="https://www.abs.gov.au/statistics/health/health-conditions-and-risks/australian-health-survey-usual-nutrient-intakes/latest-release">consumed</a> than required, excess amounts leave the body through urine.</p> <p>Signs of scurvy can appear as early as a month after a daily intake of less than 10 mg of vitamin C.</p> <p>Eating vitamin C-rich foods – such as oranges, strawberries, kiwifruit, plums, pineapple, mango, capsicum, broccoli and Brussels sprouts – can resolve symptoms within a few weeks.</p> <p>Vitamin C is also readily available as a supplement if there are reasons why intake through food may be compromised. Typically, the supplements contain 1,000mg per tablet, and the <a href="https://www.eatforhealth.gov.au/nutrient-reference-values/nutrients/vitamin-c">recommended upper limit</a> for daily Vitamin C intake is 2,000mg.<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/241894/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/lauren-ball-14718">Lauren Ball</a>, Professor of Community Health and Wellbeing, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</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/scurvy-is-largely-a-historical-disease-but-there-are-signs-its-making-a-comeback-241894">original article</a>.</em></p>

Body