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5 items you’re cleaning too much

Cleaning the house is no easy feat. To make life a little easier for you, here are five items you are probably cleaning more than you need to. 1. Clothes worn once For particular items of clothing such as gym gear, shirts and tights it is fine to wash clothes after every wear. However, most other items can be worn up to three times advises Carolyn Forte, the director of the Cleaning Lab at the Good Housekeeping Institute. "Over-washing and over-drying fabrics can cause fading and wear,” she said. Studies have also shown that it is ideal to wash bath towels after three uses. 2. Dinner plates Instead of spending time rinsing your plates before putting them in the dishwasher, just make sure all the food is scrapped off. "Pre-washing dishes is a waste of time and energy,” said Carolyn. "If you aren't running it right away, let the dishwasher rinse them with a 'rinse only' cycle." 3. Light Fixtures It can be tempting to dust your light fixtures every week but Carolyn advises saving your strength from a different household task. She advises that you can get away with cleaning light fixtures once a month. 4. Jackets In the cooler months jackets are worn every day. However, this necessity only needs to be washed every three months. Jackets don’t usually come into contact with skin cells or natural oils, which allows them to go longer between washes than other clothes. 5. Curtains Curtains need to be washed if you get any marks on them but if they are in pristine condition, according to Carolyn they only need to be cleaned once a year. Image credits: Shutterstock

Home & Garden

Grave cleaning videos are going viral on TikTok. Are they honouring the dead, or exploiting them?

<a href="https://theconversation.com/profiles/edith-jennifer-hill-1018412">Edith Jennifer Hill</a>, <a href="https://theconversation.com/institutions/flinders-university-972">Flinders University</a> and <a href="https://theconversation.com/profiles/marina-deller-947925">Marina Deller</a>, <a href="https://theconversation.com/institutions/flinders-university-972">Flinders University</a> Cleaning the graves of strangers is the latest content trend taking over TikTok. But as millions tune in to watch the videos, it’s becoming clear not all of them are created equal. Two grave-cleaning creators in particular seem to reside at opposite ends of the trend. One of the first accounts to gain popularity for grave cleaning was <a href="https://www.tiktok.com/@ladytaphos">@ladytaphos</a>. This account is run by Alicia Williams, a Virginia resident who treats the graves with great dignity. Williams will often share the story of the person residing within, and acts with grace and kindness as she restores beauty to the <a href="https://www.tiktok.com/@ladytaphos/video/7197894295641148714">graves</a>. On the other end of the spectrum is Kaeli Mae McEwen, or <a href="https://www.tiktok.com/@_the_clean_girl">@the_clean_girl</a>, who leans into more clickbait-y tactics. McEwen is known for throwing a pink spiky ball through a graveyard and cleaning the grave it lands on. She also uses her videos to promote her own pink foamy cleaner (which at one point could be purchased via a link in her bio). <h2>Cleaning and death</h2> While Williams’ and McEwen’s videos may seem novel to some, death and cleaning have a long and varied relationship that spans time and cultures. Washing a loved one’s body before burial or cremation isn’t just practical – it’s a significant <a href="https://www.theage.com.au/national/victoria/washing-and-dressing-our-dead-the-movement-challenging-how-we-grieve-20230510-p5d794.html">ritual</a> that provides meaning during a period of grief. In certain cultures and religions it’s also a process of purification, or preparation for the afterlife. Much has been written about cleaning and clearing out the homes of deceased people. Family members often won’t agree on how to approach such a task. In his <a href="https://theconversation.com/friday-essay-grief-and-things-of-stone-wood-and-wool-136721">essay on death and objects</a>, author Tony Birch writes about his mother clearing out his grandmother’s house. “My mother decided that our first task after her death was to empty out her Housing Commission flat and scrub it clean,” Birch writes. He first laments the move, but later recognises the value of cleaning together before sorting – and treasuring – the items his grandmother left behind. Margaretta Magnuson’s 2017 book, <a href="https://www.google.com.au/books/edition/The_Gentle_Art_of_Swedish_Death_Cleaning/uW00DwAAQBAJ?hl=en&gbpv=1&pg=PT7&printsec=frontcover">The Gentle Art of Swedish Death Cleaning</a>, is a humorous and thoughtful introduction to the Swedish movement of döstädning. The book (and subsequent <a href="https://www.sbs.com.au/ondemand/tv-series/the-gentle-art-of-swedish-death-cleaning">reality TV series</a>) has sparked various conversations on death and cleaning, and especially on cleaning before you yourself pass away so you don’t leave a mess for your loved ones. Grave cleaning can be seen as another continuation of caring for the deceased. People who decide to clean the graves of strangers may do so out of <a href="https://www.theguardian.com/society/2022/sep/04/how-gravetok-videos-of-cleaning-headstones-went-viral">respect</a>, or in an attempt to <a href="https://www.buzzfeed.com/alexalisitza/tiktok-woman-cleans-old-gravestones">give them “their name back”</a> (as names on graves become visible following the removal of debris). <h2>Two very different approaches</h2> Williams and McEwen are received quite differently by viewers. Anecdotally, viewers respond more positively to the calmer and more respectful cleaning videos by Williams, who takes time to explain the process while ensuring the correct products are used. Meanwhile, many find McEwen’s videos problematic and criticise her for not adhering to proper graveyard decorum. McEwen makes a spectacle of sites of mourning, such as by pretending to vacuum graves, replacing flowers placed by others and making jokes. Viewers also speculate the products she uses may cause damage to the graves. Perceived intent plays a role in how each creator’s content is received. While Williams focuses on respectfully restoring graves to their former glory, McEwen positions herself as the focus and merely uses the graves for content. <h2>A complex emotional object</h2> Similar to other funerary objects such as coffins and urns, graves are associated with both the person who died and the fact of their death. As such, they are emotionally complex objects that bring both strength and sadness to those left behind. But graves are unique also in that they are private objects of grief exposed in a public context. Anyone visiting the graveyard can view and interact with them. Does that make them “fair game” for content creators? Graves don’t just represent deceased loved ones. They can also act as stand-ins in their absence, becoming stone bodies of sorts. As sociologist Margaret Gibson describes in her book <a href="https://www.mup.com.au/books/objects-of-the-dead-paperback-softback">Objects of the Dead: Mourning and Memory in Everyday Life</a>, “death reconstructs our experience of objects”. “There is the strangeness of realising that things have outlived persons, and, in this regard, the materiality of things is shown to be more permanent than the materiality of the body,” she says. Caring for and cleaning graves can therefore be interpreted as caring for the deceased, by extending their existence through the materiality of their resting place. Psychological researcher <a href="https://www.tandfonline.com/doi/abs/10.1080/1600910X.2018.1521339">Svend Brinkmann asserts</a> artefacts such as graves are “culturally sanctioned”, gaining “significance from a collective system of meaning”. In other words, we as a community create and uphold reverence for such items. This is partly why the desecration of graves is viewed as abhorrent. It is societally understood to be a desecration of the person themselves. It’s also why content creators must tread lightly. <h2>A reason for haunting?</h2> There are ways to interact with gravestones (and even create content) which acknowledge their complexity and connection to their owners. TikTok creator Rosie Grant (<a href="https://www.tiktok.com/@ghostlyarchive?lang=en">@ghostlyarchive</a>) bakes recipes found on headstones and records the process. She has even met with the families of the deceased <a href="https://www.independent.co.uk/life-style/food-and-drink/defining-dishes-ghostly-archive-tiktok-b2414122.html">to make the recipes together</a> and learn more about the people behind the engraving-worthy food. However, randomly cleaning the graves of strangers is fraught territory – and rife with potential privacy issues. It isn’t clear whether McEwen seeks permission from loved ones before cleaning graves, but contextually this seems unlikely. <a href="https://www.youtube.com/watch?v=nKkOS2GjCxk">Recent discussions</a> have also uncovered questionable editing in her videos. Some graves in her before-and-after videos have been edited to appear cleaner and to have their structure altered. McEwen’s pink foaming cleaner also appears to be a blue cleaner edited to appear pink, raising even more questions about intent and responsibility. While McEwen claims to be “honouring” lives by cleaning “final resting places”, the consensus from viewers is her actions are dishonourable. As one host <a href="https://www.youtube.com/watch?v=nKkOS2GjCxk">commented on a in podcast</a> discussing McEwen cleaning a baby’s grave while speaking in a kiddish voice: “F**k you, you’re going to get haunted.”<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/240553/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/edith-jennifer-hill-1018412">Edith Jennifer Hill</a>, Associate Lecturer, Learning & Teaching Innovation, <a href="https://theconversation.com/institutions/flinders-university-972">Flinders University</a> and <a href="https://theconversation.com/profiles/marina-deller-947925">Marina Deller</a>, Casual Academic, Creative Writing and English Literature, <a href="https://theconversation.com/institutions/flinders-university-972">Flinders University</a> Image credits: Shutterstock 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/grave-cleaning-videos-are-going-viral-on-tiktok-are-they-honouring-the-dead-or-exploiting-them-240553">original article</a>.

Caring

Yes, you do need to clean your tongue. Here’s how and why

<a href="https://theconversation.com/profiles/dileep-sharma-1562149">Dileep Sharma</a>, <a href="https://theconversation.com/institutions/university-of-newcastle-1060">University of Newcastle</a> Has your doctor asked you to stick out your tongue and say “aaah”? While the GP assesses your throat, they’re also checking out your tongue, which can reveal a lot about your health. The doctor will look for any changes in the tongue’s surface or how it moves. This can indicate issues in the mouth itself, as well as the state of your overall health and immunity. But there’s no need to wait for a trip to the doctor. Cleaning your tongue <a href="https://pubmed.ncbi.nlm.nih.gov/21797979/">twice a day</a> can help you check how your tongue looks and feels – and improve your breath. <h2>What does a healthy tongue look like?</h2> Our tongue plays a crucial role in eating, talking and other vital functions. It is not a single muscle but rather a muscular organ, made up of eight muscle pairs that help it move. The surface of the tongue is covered by tiny bumps that can be seen and felt, called papillae, giving it a rough surface. These are sometimes mistaken for taste buds – they’re not. Of your 200,000-300,000 papillae, only a small fraction contain taste buds. Adults have up to 10,000 taste buds and they are invisible to the naked eye, concentrated mainly on the tip, sides and back of the tongue. <figure><iframe src="https://www.youtube.com/embed/uYvpUl7li9Y?wmode=transparent&start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> A healthy tongue is pink although the shade may vary from person to person, ranging from dark to light <a href="https://my.clevelandclinic.org/health/symptoms/24600-tongue-color">pink</a>. A small amount of white coating can be normal. But significant changes or discolouration may indicate a disease or <a href="https://www.healthline.com/health/tongue-problems-2">other issues</a>. <h2>How should I clean my tongue?</h2> Cleaning your tongue only takes around 10-15 seconds, but it’s is a good way to check in with your health and can easily be incorporated into your teeth brushing routine. You can clean your tongue by gently scrubbing it with a regular toothbrush. This dislodges any food debris and helps prevent microbes building up on its rough textured surface. Or you can use a special <a href="https://pubmed.ncbi.nlm.nih.gov/26865433/">tongue scraper</a>. These curved instruments are made of metal or plastic, and can be used alone or accompanied by scrubbing with your toothbrush. Your co-workers will thank you as well – cleaning your tongue can help combat <a href="https://pubmed.ncbi.nlm.nih.gov/24165218/">stinky breath</a>. Tongue scrapers are particularly <a href="https://pubmed.ncbi.nlm.nih.gov/15341360/">effective</a> at removing the bacteria that commonly causes bad breath, hidden in the tongue’s surface. <h2>What’s that stuff on my tongue?</h2> So, you’re checking your tongue during your twice-daily clean, and you notice something different. Noting these signs is the first step. If you observe any changes and they worry you, you should talk to your GP. Here’s what your tongue might be telling you. White coating Developing a white coating on the tongue’s surface is one of the <a href="https://pubmed.ncbi.nlm.nih.gov/31309703/">most common changes</a> in healthy people. This can happen if you stop brushing or scraping the tongue, even for a few days. In this case, food debris and microbes have accumulated and caused plaque. Gentle scrubbing or scraping will remove this coating. Removing microbes reduces the risk of chronic infections, which can be transferred to other organs and cause <a href="https://www.nature.com/articles/s41368-022-00163-7">serious illnesses</a>. Yellow coating This may indicate oral thrush, a <a href="https://www.nidirect.gov.uk/conditions/oral-thrush-adults">fungal infection</a> that leaves a raw surface when scrubbed. Oral thrush is <a href="https://www.aafp.org/pubs/afp/issues/2008/1001/p845.html">common</a> in elderly people who take multiple medications or have diabetes. It can also affect children and young adults after an illness, due to the temporary <a href="https://pubmed.ncbi.nlm.nih.gov/7636666/">suppression of the immune system</a> or <a href="https://www.stanfordchildrens.org/en/topic/default?id=candidiasis-in-children-90-P01888">antibiotic</a> use. If you have oral thrush, a doctor will usually prescribe a course of anti-fungal medication for at least a month. Black coating Smoking or consuming a lot of strong-coloured food and drink – such as tea and coffee, or dishes with tumeric – can cause a furry appearance. This is known as a <a href="https://my.clevelandclinic.org/health/diseases/17918-black-hairy-tongue">black hairy tongue</a>. It’s not hair, but an overgrowth of bacteria which may indicate poor oral hygiene. Pink patches Pink patches surrounded by a white border can make your tongue look like a map – this is called “<a href="https://www.mayoclinic.org/diseases-conditions/geographic-tongue/symptoms-causes/syc-20354396">geographic tongue</a>”. It’s <a href="https://www.mayoclinic.org/diseases-conditions/geographic-tongue/diagnosis-treatment/drc-20354401">not known</a> what causes this condition, which usually doesn’t require treatment. Pain and inflammation A red, sore tongue can indicate a <a href="https://medlineplus.gov/ency/article/003047.htm">range of issues</a>, including: <ul> <li>nutritional deficiencies such as folic acid or vitamin B12</li> <li>diseases including <a href="https://my.clevelandclinic.org/health/diseases/22377-pernicious-anemia">pernicious</a> anaemia, <a href="https://www.rch.org.au/kidsinfo/fact_sheets/kawasaki_disease/">Kawasaki disease</a> and <a href="https://www.childrens.health.qld.gov.au/health-a-to-z/scarlet-fever">scarlet fever</a></li> <li>inflammation known as <a href="https://www.ncbi.nlm.nih.gov/books/NBK560627/">glossitis</a></li> <li>injury from hot beverages or food</li> <li>ulcers, including cold sores and canker sores</li> <li><a href="https://www.nidcr.nih.gov/health-info/burning-mouth">burning mouth syndrome</a>.</li> </ul> Dryness Many medications can cause dry mouth, also called xerostomia. These include antidepressants, anti-psychotics, muscle relaxants, pain killers, antihistamines and diuretics. If your mouth is very dry, it may hurt. <h2>What about cancer?</h2> White or red patches on the tongue that can’t be scraped off, are long-standing or growing need to checked out by a dental professional as soon as possible, as do painless ulcers. These are at a <a href="https://oralcancerfoundation.org/cdc/premalignant-lesions/">higher risk</a> of turning into cancer, compared to other parts of the mouth. <a href="https://pubmed.ncbi.nlm.nih.gov/36852511/">Oral cancers</a> have low survival rates due to delayed detection – and they are on the rise. So <a href="https://youtu.be/Y6QkKhEjS5M">checking your tongue</a> for changes in colour, texture, sore spots or ulcers is <a href="https://www.dhsv.org.au/oral-health-programs/oral-cancer-screening-and-prevention">critical</a>.<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/237130/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/dileep-sharma-1562149">Dileep Sharma</a>, Professor and Head of Discipline - Oral Health, <a href="https://theconversation.com/institutions/university-of-newcastle-1060">University of Newcastle</a> Image credits: Shutterstock 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/yes-you-do-need-to-clean-your-tongue-heres-how-and-why-237130">original article</a>.

Body

For a century, it’s been illegal to swim in the Seine. Will Paris’s clean-up make the river safe for Olympic swimmers?

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/ian-a-wright-5162">Ian A. Wright</a>, <a href="https://theconversation.com/institutions/western-sydney-university-1092">Western Sydney University</a> Five eagerly anticipated events in the Paris Olympics will be the mens and womens 10 kilometre marathon swimming races, as well as the 1,500 metre swimming section of three triathlon events. Why? Because all will be held in the Seine River in the centre of Paris. The swimmers – including <a href="https://www.swimmingworldmagazine.com/news/trio-complete-an-historic-australian-olympic-marathon-swim-team-for-paris-2024">four Australians</a> – will pass famous landmarks such as the Musee d'Orsay as they swim through the historic heart of the city. This will have enormous scenic appeal for spectators. But will it be safe for swimmers? Rivers running through large cities are <a href="https://www.nature.com/articles/s42949-021-00026-w">often polluted</a>, whether from stormwater, chemical pollution or wastewater spills. As the marathon swimmers pass the <a href="https://musee-egouts.paris.fr/en/">Paris Sewer Museum</a>, they may well wonder if they’re in clean water. For more than 100 years, swimming in the Seine has actually been illegal, due to concerns over what the water could do to human health. Authorities <a href="https://www.theguardian.com/sport/article/2024/may/24/olympic-games-clean-up-aims-to-leave-parisians-swimming-in-the-seine">have been working</a> to clean up the water, spending A$2.2 billion (€1.3 billion) on improving water quality. The goal: cut bacterial contamination by 75% before the first swimmer touches the water. These measures are having an impact – but recent heavy rains have seen bacteria levels spike. While officials have put on brave faces, there’s now a <a href="https://www.reuters.com/sports/olympics/paris-2024-sets-up-reserve-site-marathon-swimming-if-seine-unsuitable-2024-07-05/">contingency plan</a> in case the Seine isn’t safe. <h2>Why swim in the Seine at all?</h2> Urban rivers have a questionable reputation. But this isn’t the first time the Seine River has been used for Olympic swimming. In the 1900 Paris Olympics, <a href="https://olympics.com/en/olympic-games/paris-1900/results/swimming">seven swimming events</a> were all held in the river. These games were the first modern Olympics where <a href="https://olympics.com/ioc/faq/history-and-origin-of-the-games/when-did-women-first-compete-in-the-olympic-games">women could compete</a> in some sports, but swimming was not one of those permitted. The Australian swimmer who competed, Frederick Lane, had to swim under the United Kingdom’s flag as Australia did not have a flag until Federation the following year. He won two gold medals. One was for the 200 metre freestyle race, and the other for a bizarre race never held again: the 200m <a href="https://www.olympedia.org/results/4433">swimming obstacle race</a>, where swimmers had to climb over poles and boats. These Olympics also saw the first and last underwater swimming race, which was also in the Seine. <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/606823/original/file-20240715-17-kajph6.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/606823/original/file-20240715-17-kajph6.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/606823/original/file-20240715-17-kajph6.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=378&fit=crop&dpr=1 600w, https://images.theconversation.com/files/606823/original/file-20240715-17-kajph6.jpg?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=378&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/606823/original/file-20240715-17-kajph6.jpg?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=378&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/606823/original/file-20240715-17-kajph6.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=475&fit=crop&dpr=1 754w, https://images.theconversation.com/files/606823/original/file-20240715-17-kajph6.jpg?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=475&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/606823/original/file-20240715-17-kajph6.jpg?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=475&fit=crop&dpr=3 2262w" alt="historic photo swimming seine river paris" /></a><figcaption>Swimmers took to the Seine’s waters at the 1900 Paris Olympics, when the river ran cleaner. <a class="source" href="https://commons.wikimedia.org/wiki/File:Swimming_1900.jpg">Wikimedia Commons</a>, <a class="license" href="http://creativecommons.org/licenses/by/4.0/">CC BY</a></figcaption></figure> Back then, the waters of the Seine were cleaner. That’s because there was a great demand for human waste on farms – and cities were the main source. Back then, “night soil” (human waste) had a <a href="https://hess.copernicus.org/articles/11/1757/2007/hess-11-1757-2007.pdf">real market value</a>. No one would think of dumping it in rivers. But as time went on, sewerage systems developed and other fertilisers such as guano and mineral fertilisers arrived. By the early 20th century, most of the city’s wastewater went into the Seine. In 1923, the swimming ban came into effect. A year later, Paris hosted the Olympics for its second time – and swimmers competed in 50 metre pools. In recent years, many cities around the world have worked to clean up their urban waterways. River swimming is <a href="https://www.timeout.com/news/the-european-cities-cleaning-up-rivers-for-wild-swimmers-101821">now common</a> in cities such as Copenhagen, Berlin and Vienna, where river health has improved dramatically. <h2>How can you clean a river like the Seine?</h2> Cleaning the Seine is a challenge. Paris is home to 11 million people, with plenty of industry. Urban rivers are almost inevitably polluted by waste from the <a href="https://www.nature.com/articles/s42949-021-00026-w%5D">surrounding city</a>. Leaking and overflowing sewage systems are a major source of pollution. In places like the UK, <a href="https://www.bbc.com/news/explainers-62631320">sewage spills</a> into waterways have become a major political issue. When wastewater spills into rivers, it carries pollutants and dangerous loads of <a href="https://www.cdc.gov/mmwr/volumes/67/wr/mm6725a1.htm">disease-causing microorganisms</a>, such as Escherichia coli (commonly known as E. coli). Untreated water can have viruses, bacteria and disease-causing protozoa. In the lead-up to the Paris games, authorities have been working to improve water quality enough to bring some Olympic swimming back to the Seine. Stormwater – often contaminated by dog poo or sewage overflows – is <a href="https://www.theguardian.com/environment/2023/oct/08/can-paris-clean-seine-for-next-year-2024-olympics">being cleaned</a> before it is released into the river. Despite the money and effort, there are still real questions over whether it will be enough to guarantee swimmer safety. Bacterial levels hit risky levels <a href="https://edition.cnn.com/2024/07/11/sport/paris-olympics-seine-triathlon-bacteria-spiking-intl/index.html">most days in June</a> due to unseasonally heavy rains, but the water has <a href="https://www.france24.com/en/france/20240712-seine-clean-enough-to-swim-for-most-of-past-12-days-paris-says-ahead-of-olympics">improved in July</a>. This week, French sports minister Amélie Oudéa-Castéra <a href="https://www.nbclosangeles.com/paris-2024-summer-olympics/french-sports-minister-takes-dip-in-seine-river-2024-paris-olympics/3458469/">swam a few metres</a> in the Seine in an effort to douse concerns. By contrast, the other Olympic swimming events will take place in a recently constructed 50 metre pool, which will have very good water quality. The pool water is filtered and treated with a disinfectant such as chlorine or bromine. It will be regularly tested to ensure optimal water quality. At the Tokyo 2020 Olympics, triathletes had to swim in polluted Tokyo Bay. But similar concerns over sickness proved unfounded. The real challenge was the <a href="https://www.theguardian.com/environment/2021/aug/05/olympic-athletes-and-volunteers-in-tokyo-tortured-by-heat">oppressive heat</a>. <h2>What’s at risk?</h2> The most likely outcome if races are held when bacterial levels are unsafe would be getting a gastrointestinal bug. Officials have some control over this. Contamination is worst after heavy rain. Races could be delayed if need be. Many swimmers – especially those who compete in open-water competitions – are familiar with swimming in water with some level of pollution. Some see it as worth the risk. Italian double world champion swimmer Gregorio Paltrinieri <a href="https://www.france24.com/en/live-news/20240226-paris-holds-its-breath-for-olympic-swimming-events-in-murky-seine">said in January</a>: <blockquote> Even if the water is dirty, I would rather swim in an electric atmosphere in the centre of Paris than in an anonymous stretch of water. </blockquote> Paris 2024 organisers previously warned there was no plan B for the 10 km marathon races in the Seine if water quality testing is unsuitable. But this has now changed. If the river isn’t clean enough, open water swimming <a href="https://www.reuters.com/sports/olympics/paris-2024-sets-up-reserve-site-marathon-swimming-if-seine-unsuitable-2024-07-05/">will be moved</a> to the rowing venue. The Olympic triathlon is planned around a swimming leg in the Seine. But triathletes <a href="https://www.espn.com.au/olympics/story/_/id/39912675/triathlon-leg-cancelled-seine-quality-paris-2024-chief">have been told</a> the swim leg could be skipped if the water is unsafe, which would turn the race into a running and cycling duathlon. As the world’s attention turns to Paris, there will be many anxious officials behind the scenes hoping their hard work on making the Seine swimmable pays off.<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/231705/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/ian-a-wright-5162">Ian A. Wright</a>, Associate Professor in Environmental Science, <a href="https://theconversation.com/institutions/western-sydney-university-1092">Western Sydney University</a> Image credits: CARON/ZEPPELIN/SIPA/Shutterstock Editorial 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/for-a-century-its-been-illegal-to-swim-in-the-seine-will-pariss-clean-up-make-the-river-safe-for-olympic-swimmers-231705">original article</a>. </div>

Travel Trouble

"Force of nature": Tributes flow for Shannen Doherty

Shannen Doherty has passed away aged 53. The beloved actress, known for her roles on Little House on the Prairie, Charmed and 90210, died over the weekend following a nine-year battle with breast cancer. Doherty's death was confirmed by her publicist, Leslie Sloane, who said in a statement: "It is with a heavy heart that I confirm the passing of actress Shannen Doherty. On Saturday, July 13, she lost her battle with cancer after many years of fighting the disease." "The devoted daughter, sister, aunt and friend was surrounded by her loved ones as well as her dog, Bowie. The family asks for their privacy at this time so they can grieve in peace." Tributes have flowed in for Doherty from friends, co-stars and loved ones, who have remembered her as a "force of nature". "Shannen Doherty had the heart of a lion," fellow Charmed co-star Rose McGowan wrote in a tribute shared to Instagram. "Passion for craft is often mislabelled as trouble. Shannen was passion," McGowan continued. "I met her in the 90s and was awed. Getting to really know her later in life, a beautiful gift. This woman fought to live," McGowan added, before praising Doherty's work ethic which was "inspiring to the end". "Shannen's great love for directing, for acting, Holly [Marie Combs], her friends, her parents, dog and her beloved fans was legendary." "Our lives had been intertwined in a unique way. We laughed at dark forces who wanted us to hate each other, instead we chose love and respect. A soft-hearted badass as there ever was. A force of energy that will live forever in hearts," McGowan wrote. "Rest now warrior, we will never forget you dear sister." <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/C9aLxGVvLH_/?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/C9aLxGVvLH_/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by Rose McGowan (@rosemcgowan)</a> </div> </blockquote> Fellow Charmed co-star Alyssa Milano - who Doherty had a complicated relationship with - also paid tribute to her via a statement shared with People. "It's no secret that Shannen and I had a complicated relationship, but at its core was someone I deeply respected and was in awe of," Milano wrote. "She was a talented actress, beloved by many and the world is less without her. My condolences to all who loved her," she concluded. Meanwhile, actress Olivia Munn, who bonded with Doherty over their shared breast cancer battle, shared a lengthy tribute to her Instagram story. "I am absolutely heartbroken over the passing of Shannen Doherty. When I was first diagnosed with breast cancer I remembered how she bravely let the world into her journey and reached out to her," Munn wrote. "We became instant friends – which I honestly couldn't comprehend at times because watching her on 90210 was everything to me when I was 10." "Looking back on the last text she sent me just a couple months ago, she asked how I was doing and if she could do anything for me.... True to form, Shannen was offering her support even though she was in the final stages of fighting this horrific disease," Munn continued. "Cancer is really f---ing scary and Shannen faced it with such dignity, strength and grace. "I'm sending all my love to her mother who was her best friend, hero and champion every step of the way. Fly so high, my friend 💔💔💔💔". Doherty's Beverly Hills and 90210 co-star Jason Priestly described her as a "force of nature" in an Instagram post. "I will miss her," he wrote. "Sending love and light to her family in this dark time." "Shocked and saddened by news of Shannen Doherty's death," Carol Potter, who played her on-screen mum in 90210, wrote on Instagram. "What a journey she has been on! Gone too soon. Throughout, she stayed true to herself and gave us an example of courage and perseverance in facing her own death. May she rest in peace.❤️🙏" Images: Instagram

Caring

Anti-cellulite products are big business – but here’s what the science says

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/rebecca-shepherd-423135">Rebecca Shepherd</a>, <a href="https://theconversation.com/institutions/university-of-bristol-1211">University of Bristol</a> Although <a href="https://onlinelibrary.wiley.com/doi/full/10.1111/jocd.14815">90% of women have cellulite</a>, we’re yet to see it represented as a normal anatomical characteristic in popular culture. In Greta Gerwig’s 2023 Hollywood blockbuster, for instance, Stereotypical Barbie, played by Margot Robbie, develops dimples on her upper thigh as part of her existential crisis – along with other human faults such as halitosis, flat feet and irrepressible thoughts of death. When Stereotypical Barbie asks doll sage Weird Barbie what the dimples are, she explains: “That’s cellulite. That’s going to spread everywhere. Then you’re going to start getting sad and mushy and complicated.” Barbie’s perfect smooth plastic perfection is marred. Despite its prevalence, then, cellulite has been constructed as a flaw in need of correction. Consumers, it seems, agree, especially when fed a diet of the <a href="https://www.tandfonline.com/doi/full/10.1080/21604851.2021.1913827">photoshop smoothed skin</a> of models, social media influencers – and Hollywood stars. <figure><iframe src="https://www.youtube.com/embed/rmThigh1i8s?wmode=transparent&start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe><figcaption>“NO!” Barbie shouts when Weird Barbie tells her she has cellulite.</figcaption></figure> Cellulite’s usually found in areas that have greater amounts of subcutaneous fat, when fat deposits push through the connective tissue beneath the skin, leading to a lumpy appearance. It is common, <a href="https://www.sciencedirect.com/science/article/pii/S0738081X1300076X?via%3Dihub">usually painless</a> and harmless. The human skin is the <a href="https://theconversation.com/the-skin-is-a-very-important-and-our-largest-organ-what-does-it-do-91515">body’s largest organ</a>, made up of three layers. At the surface, the epidermis acts as our first line of defence against the environment. This outermost, impermeable layer is made up of cells that are constantly renewed and shed, protecting our body from external elements. Beneath the epidermis lies the dermis, a robust layer containing fibroblasts, the cells responsible for producing essential proteins such as collagen and elastin. These proteins provide structure and elasticity, contributing to the skin’s strength and flexibility. Deeper still is the hypodermis, also known as the subcutaneous layer. This layer is rich in adipose tissue – mostly made up of fat, which plays a crucial role in cushioning and insulating the body, as well as storing fat that can be used when needed. Beneath these three layers of skin, there is muscle. Running from the muscle to the dermis are <a href="https://journals.lww.com/amjdermatopathology/fulltext/2000/02000/cellulite__from_standing_fat_herniation_to.7.aspx">bands of connective tissue</a>, that holds the adipose tissue in “pockets”. Cellulite does not affect health, although some people report that it affects their <a href="https://www.tandfonline.com/doi/abs/10.1080/07853890.2018.1561731">self-esteem and body image</a> but that’s more to do with the social pressure on women to be physically perfect – or spend money, time and energy trying to be as close to perfect as possible. Cellulite, then, has become big business for the beauty industry. In the lead up to summer especially, companies will promote <a href="https://www.asa.org.uk/advice-online/weight-control-cellulite.html">all manner of products</a> from creams and serums to gadgets and pills, all aimed at creating perfectly smooth limbs. The most popular question seems to be, “Do these treatments work?” but as an anatomist I think the more pressing question is, “Why are healthy women’s bodies considered something to treat, cure or correct?” The beauty and wellness industry has long capitalised on societal standards of beauty. The idea that cellulite is undesirable and <a href="https://journals.lww.com/dermatologicsurgery/abstract/1978/03000/So_Called_Cellulite.9.aspx">should be corrected</a> has been perpetuated since Vogue magazine was the <a href="https://archive.vogue.com/article/1968/4/cellulite-the-new-word-for-fat-you-couldnt-lose-before">first English language magazine</a> to use the term “cellulite”, introducing the concept to thousands of women. This marketing strategy taps into the insecurities of consumers, particularly women, and promotes an endless pursuit of “perfection” for bodies that have normal anatomical variation. By framing cellulite as a condition that needs treatment, companies can sell a wide range of products and services, bolstered by celebrity endorsements, which lend credibility and aspirational value to pseudo-medical “smoothing” products. However, there is limited scientific evidence supporting the effectiveness of these supplements in treating cellulite. In fact, the <a href="https://onlinelibrary.wiley.com/doi/10.1111/j.1524-4725.1978.tb00416.x">first scientific paper</a> on cellulite, published in 1978, referred to it as “so called cellulite: the invented disease”. Recent product launches include, <a href="https://lemmelive.com/en-gb/products/lemme-smooth-capsules?variant=45597048111318">Lemme Smooth</a>, Kourtney Kardashian-Barker’s latest addition to her vitamin and supplement range. The product’s promotional materials claim that the capsule “visibly reduces cellulite in 28 days”. But what does the science tell us? Supplements like Lemme Smooth claim to improve skin texture and reduce cellulite from within. Kardashian-Barker’s supplement contains a mixture of <a href="https://link.springer.com/article/10.1007/s10298-015-0977-4">french cantaloupe melon</a>, hyaluronic acid, chromium and vitamin C among other ingredients. The body’s ability to absorb and utilise these ingredients in a way that would impact cellulite is still a subject of debate. There is evidence that <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4110621/#:%7E:text=In%20a%20randomized%2C%20double%2Dblind,in%20part%2C%20to%20the%20skin.">ingested hyaluronic acid</a> can migrate into the skin, stimulating the production of collagens within the dermis – and vitamin C has been shown to <a href="https://www.nature.com/articles/s41598-020-72704-1">thicken the surface layer</a> of the skin. However, the lack of standardisation in testing for the use of these ingredients in the treatment of cellulite means it’s still not clear if they will have a <a href="https://onlinelibrary.wiley.com/doi/10.1111/j.1467-2494.2006.00318.x">significant effect</a>. Other products marketed to reduce the appearance of cellulite include topical creams and lotions, containing ingredients like <a href="https://karger.com/books/book/763/chapter-abstract/5600478/Specific-Use-Cosmeceuticals-for-Body-Skin-Texture?redirectedFrom=fulltext">caffeine, retinol, and herbal extracts</a>. Cosmetic products are not able to penetrate the epidermis enough to significantly affect the underlying fat deposits and connective tissue. Some invasive treatments, such as <a href="https://www.aad.org/public/cosmetic/fat-removal/cellulite-treatments-what-really-works">laser therapy, subcision, and acoustic wave therapy</a> can offer more promising results. These procedures work by breaking down the connective tissue bands that cause dimpling and stimulating collagen production in the dermis to improve skin elasticity. While these methods <a href="https://www.aad.org/public/cosmetic/fat-removal/cellulite-treatments-what-really-works">may be more effective</a>, they are often expensive, require multiple sessions to achieve results – and aren’t without risk. Maintaining a healthy diet, drinking lots of water, and regular physical activity can help improve the overall appearance of the skin and reduce the visibility of cellulite. Losing weight and strengthening the muscles in the legs, buttocks and abdomen may make cellulite less noticeable, but it won’t make it <a href="https://jndc-chemistryarticles.info/ijn/article/318">disappear altogether</a>. The bottom line, though, is that cellulite does not need to be treated. It’s a normal anatomical variation that’s been transformed into a condition driving a lucrative market for cures <a href="https://link.springer.com/article/10.1007/s40257-015-0129-5">that don’t exist</a>. My top expert advice in the run up to summer? Be wary of claims from cosmetic companies and save your money. <hr /> The Conversation has approached the Lemme Live brand for comment.<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/232318/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/rebecca-shepherd-423135">Rebecca Shepherd</a>, Senior Lecturer in Human Anatomy, School of Anatomy, <a href="https://theconversation.com/institutions/university-of-bristol-1211">University of Bristol</a> Image credits: Shutterstock 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/anti-cellulite-products-are-big-business-but-heres-what-the-science-says-232318">original article</a>. </div>

Body

5 ways to fake a clean bathroom

Got a friend popping around for a catch up, and, your bathroom is less than sparkling? Don’t stress. Follow our foolproof tips to fake it so no one knows you didn’t have time to do a proper clean. 1. Scrub the loo The toilet is often a telltale sign that your bathroom is in need of a clean. If you haven’t already invested in a leave-in cleaner for your bowl, simply get in there with some toilet cleaner and give a good squirt under the rim. Leave it to do its job while you get on with the rest of the bathroom. Then when it’s had a few minutes to soak, give it a once over with the toilet brush. Grab some toilet paper (or an antibacterial wipe) and give the rim and the top of the toilet a once over to remove any dust. 2. Eliminate any obvious mould and grime Find yourself some good-quality mould spray that you can apply and then leave to work its magic while you move on to other areas of the bathroom. After 10 minutes (check your packet for the optimal time) you should be able to spray it with warm water from the shower and then wipe it clean. 3. Do a quick dust bust Grab yourself a clean cloth or antibacterial wipe and go over the shelves and basin to get rid of any dust or dirt you can see. 4.Change your bathmat and hand towel There’s nothing like a fresh and clean bathmat to trick your guests into thinking that you’ve just finished scrubbing the bathroom. Add a clean hand towel to complete the look. 5.Add a sweet scent Give your bathroom a look of freshness by popping a small vase of flowers in there. You can also try a scented candle on top of the toilet to give off a nice scent and hide any odours. Image credits: Shutterstock

Home & Garden

6 kitchen mistakes you don’t know you're making

The kitchen is the heart of the home, but it can also be an area where we make the most mistakes in the way we use it. Check out our top tips to help keep your kitchen ship-shape. Clean the inside of the dishwasher You may not realise that the appliance that keeps everything clean can in fact be quite dirty. The inside of the dishwasher can be a breeding ground for bacteria. Run a hot cycle with nothing but a cup of white vinegar in the top and bottom shelves. Then simply wipe clean the sides and seams of the dishwasher. Don’t wash your chicken You may think this is necessary, but in fact washing your chicken can spread bacteria across your work surface, towels, cloths, and your hands. You can avoid it altogether as cooking will get rid of anything harmful on your meat. Change your kitchen towel The towel can be harbouring many kinds of bacteria, so it’s best to change them daily. Don’t rely on the sniff test to see if it needs a wash. A dirty towel used to dry your clean dishes can quickly spread germs that can make you sick. Avoid putting wooden items in the dishwasher The heat from the appliance can cause wooden items to warp and crack. That means wooden chopping boards, salad servers, or pots and pans with wooden handles need to be hand washed. Never wipe up floor spills with the dishcloth or tea towel If you wipe up some spilled milk off the floor and then use that same cloth to wipe your bench, germs can quickly spread. Same goes with a tea towel. Always use paper towel for cleaning mess from the floor. Fix leaking taps It’s too easy to ignore the drip drip of a leaky tap. But did you know a leaking tap could use over 6,000L of water in a month? Save the Earth (and reduce your water bill) by staying on top of any leaks around the home. Have a separate chopping board for meat Cross contamination can occur if you chop raw meat on a chopping board and then use it later (even after cleaning) for chopping fruit or vegetables. It’s best to have a board designated just for meat – it’s great if it’s a different colour to your everyday boards. Wash in hot soapy water after each use. Image credits: Getty Images

Home & Garden

How to fall asleep without sleeping pills: 7 natural sleep aids that actually work

It’s 3am and you’re suddenly wide awake. Try these seven science-backed strategies to fall back to sleep fast. Give meditation a try As a mindfulness coach, I’m very aware of the day-to-day anxieties and worries that can interfere with a good night’s sleep. One of the most effective natural sleep aids is a quick meditation session to ease yourself out of those stresses. If you’ve never meditated before, you’ll likely find the meditation interrupted by thoughts flashing through your mind. It’s important for you to know that this isn’t a failure on your part, and that you aren’t doing anything wrong. Thinking is just what the brain does, as naturally as lungs take in air. The point is to be non-judgmental yet aware of your thoughts, bodily experiences and breath, moment by moment. Stop wanting to fall asleep It’s counterintuitive, isn’t it? Sometimes trying too hard to do something is the very thing that prevents us from achieving it – and that’s never more true than when it comes to falling asleep. Desperately wanting to sleep will only stoke anxieties that will further stress your brain, essentially feeding it the message that it’s not safe to sleep. Throw in those worries about your to-do list at work the following day, and the whole thing can snowball into a panic attack. Try letting go of that feeling that you absolutely must sleep now, and observe your own anxieties for what they are without judgment. When you stop looking at sleep as a goal, you’ll find it easier to fall asleep. Start a journal If you find yourself struggling to fall asleep, pick up a pen and paper (not your phone!), and start writing: simply scribble down an account of what’s going on inside your head. Although there’s no “right” way to journal, you might start by listing the events of your day, and from there, how those events and encounters made you feel. Building this structured picture of your thoughts may help you see that the problem that’s keeping you up at night, and is likely less overwhelming than you thought. Why my insistence on a pen and paper? First off, studies show the simple motor action that’s involved in the act of handwriting has a calming effect. Secondly, the light emitted by laptops and phones isn’t conducive to falling asleep. Find yourself a "3am friend" Some of us are lucky to have a ‘3am friend’, that close confidant you can call up in the wee hours knowing that they won’t hold it against you in the morning. Although it’s great to have someone to talk to when you want to fall asleep, it’s important that the conversation doesn’t just rehash the anxieties that are preventing you from catching shut-eye in the first place. Rather than using the call to seek solutions for those issues, talk about things that calm your nerves, or even have them assist you in deep breathing. It may sound silly, but doing a series of deep, relaxing breaths can help you let go of the troubles that are keeping you wide awake. Take a warm shower Taking a warm shower not only relaxes your muscles and soothes minor aches and pains, but it also raises your core body temperature. As soon as you step out of the shower, your body starts working at lowering that temperature, which is something that normally happens when you’re falling asleep naturally. (That’s why we always feel the need for a blanket when we sleep, no matter how warm it is!) By kick-starting that temperature-lowering process, you’re tricking your body into falling asleep fast. Stretch yourself to sleep Anxiety keeping you up? Research suggests mild stretching can help take the edge off and relax muscles that have become stiff and sore after a long day. We’re not talking intricate yoga poses or acrobatics here, either: Simple stretches like an overhead arm stretch and bending over to touch your toes should do the trick. Ramp up the relaxation potential with a soundtrack of ambient noise at a volume that’s just barely audible. There are plenty of white noise apps that are free to download, but soft music can work as well (so long as there are no lyrics). Just remember, if you’re using an electronic device to play these sleep-promoting sounds, make sure it’s placed screen-down so you’re not distracted by the light it emits. Read (or listen!) to something new When you’re struggling with insomnia, it might be tempting to pull an old favourite off the bookshelf. In reality, it’s better to read or listen to an audio book that covers a topic on which you know absolutely nothing. New information, while taking attention away from the stressors that are keeping you up at night, gives your brain enough of a workout to make it tire more quickly than when it’s engaged with familiar subjects and concepts. Again, if it’s an audio book or podcast you’re listening to, make sure the light-emitting side of the device is face down to keep the room as dark as possible. Darkness and warmth play an essential part in the production and maintenance of melatonin, the hormone that plays the central role falling asleep. Image credits: Getty Images This article by Deepak Kashyap originally appeared on <a href="https://www.readersdigest.co.nz/healthsmart/conditions/sleep/how-to-fall-asleep-without-sleeping-pills-7-natural-sleep-aids-that-actually-work" target="_blank" rel="noopener">Reader's Digest</a>.

Body

Vinegar and baking soda: a cleaning hack or just a bunch of fizz?

<a href="https://theconversation.com/profiles/nathan-kilah-599082">Nathan Kilah</a>, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a> Vinegar and baking soda are staples in the kitchen. Many of us have combined them in childhood scientific experiments: think fizzy volcanoes and geysers. But people also frequently mix vinegar and baking soda to produce a reportedly effective household cleaner. Unfortunately, the chemistry behind the bubbly reaction doesn’t support the cleaning hype. The fizzy action is essentially <a href="https://theconversation.com/six-surprising-things-about-placebos-everyone-should-know-220829">a visual “placebo</a>”, formed by the combination of an acid and a base. So, how does it work, and is it worth using these chemicals for cleaning? To understand all this, it helps to know a little more about chemistry. <h2>What’s an acid?</h2> Foods with a sour taste typically contain acids. These include citric acid in lemon juice, malic acid in apples, lactic acid in yoghurt and <a href="https://theconversation.com/kitchen-science-everything-you-eat-is-made-of-chemicals-56583">phosphoric acids in soft drinks</a>. Most vinegars contain around 4–10% acetic acid, the rest is water and small amounts of flavour chemicals. There are other naturally occurring acids, such as formic acid in ant bites and hydrochloric acid in our stomachs. Industrially, sulfuric acid is used in mineral processing, nitric acid for <a href="https://theconversation.com/what-is-ammonium-nitrate-the-chemical-that-exploded-in-beirut-143979">fertiliser manufacturing</a> and the highly potent hydrofluoric acid is used to etch glass. All of these acids share similar properties. They can all release hydrogen ions (positively charged atoms) into water. Depending on their potency, acids can also dissolve minerals and metals through various chemical reactions. This is why vinegar is an excellent cleaner for showers or kettles – it can react with and dissolve mineral deposits like limescale. Other common acidic cleaning ingredients are oxalic acid, used for revitalising timber decks, hydrochloric acid in concrete and masonry cleaners, and sulfamic acid in potent toilet cleaners. <h2>What’s a base?</h2> In chemistry, bases – the opposite of acids in many ways – can bind, rather than release hydrogen ions. This can help lift and dissolve insoluble grime into water. Bases can also break apart fat molecules. Baking soda (also known as sodium hydrogen carbonate, sodium bicarbonate, or bicarb) is a relatively weak base. Stronger common bases include sodium carbonate (washing soda), sodium hydroxide (lye) and ammonia. <a href="https://theconversation.com/spill-at-a-nuclear-facility-shows-potential-burn-risks-from-a-household-chemical-112763">Sodium hydroxide</a> is a potent drain cleaner – its strong base properties can dissolve fats and hair. This allows blockages to be broken down and easily flushed away. <h2>Mixing a base and an acid</h2> Mixing vinegar and baking soda causes an immediate chemical reaction. This reaction forms water, sodium acetate (a salt) and carbon dioxide – the fizzy part. The amount of carbon dioxide gas that is produced from baking soda is remarkable – one tablespoon (around 18 grams) can release over <a href="https://www.chemedx.org/JCESoft/jcesoftSubscriber/CCA/CCA8/MAIN/8/06/2/4/movie.html">five litres of gas</a>! But only if you add enough acid. Reactions in chemistry often use equal quantities of chemical reagents. A perfect balance of acetic acid and baking soda would give you just water, carbon dioxide and sodium acetate. But the majority of vinegar and bicarb cleaner recipes use a large excess of one or the other components. An example from TikTok for a DIY oven cleaner calls for one and a half cups of baking soda and one quarter cup of vinegar. Crunching the numbers behind the chemical reaction shows that after the fizz subsides, over 99% of the added baking soda remains. So the active cleaning agent here is actually the baking soda (and the “elbow grease” of scrubbing). Ovens can be cleaned much more rigorously with stronger, sodium hydroxide based cleaners (although these are also more caustic). Many modern ovens also have a self-cleaning feature, so read your product manual before reaching for a chemical cleaner of any sort. <h2>What about the sodium acetate?</h2> Devotees of vinegar and baking soda mixtures might be wondering if the product of the fizzy reaction, sodium acetate, is the undercover cleaning agent. Unfortunately, sodium acetate is an even weaker base than baking soda, so it doesn’t do much to clean the surface you’re trying to scrub. Sodium acetate is used in <a href="https://www.youtube.com/watch?v=vABpel-11Nc">crystallisation-based heating packs</a> and as a concrete sealant, but not typically as a cleaner. Fun fact: sodium acetate can be combined with acetic acid to make a crystalline <a href="https://theconversation.com/busting-the-myth-that-all-food-additives-are-bad-a-quick-guide-for-label-readers-82883">food additive</a> called sodium diacetate. These crystals give the vinegar flavour to <a href="https://www.youtube.com/watch?v=N0hEutu_goY">salt and vinegar chips</a> without making them soggy. <h2>Sorry to burst your bubbles</h2> There are a few rare cases where mixing vinegar and baking soda may be useful for cleaning. This is where the bubbling has a mechanical effect, such as in a blocked drain. But in most cases you’ll want to use either vinegar or baking soda by itself, depending on what you’re trying to clean. It will be less <a href="https://theconversation.com/visually-striking-science-experiments-at-school-can-be-fun-inspiring-and-safe-banning-is-not-the-answer-195362">visually exciting</a>, but it should get the job done. Lastly, remember that mixing cleaning chemicals at home can be risky. Always carefully read the product label and directions before engaging in DIY concoctions. And, to be extra sure, you can find out more safety information by reading the product’s <a href="https://theconversation.com/a-new-tiktok-trend-has-people-drinking-toxic-borax-an-expert-explains-the-risks-and-how-to-read-product-labels-210278">safety data sheet</a>.<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/225177/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <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> Image credits: Shutterstock 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/vinegar-and-baking-soda-a-cleaning-hack-or-just-a-bunch-of-fizz-225177">original article</a>.

Home & Garden

Taste depends on nature and nurture. Here are 7 ways you can learn to enjoy foods you don’t like

<a href="https://theconversation.com/profiles/nicholas-archer-181464">Nicholas Archer</a>, <a href="https://theconversation.com/institutions/csiro-1035">CSIRO</a> and <a href="https://theconversation.com/profiles/astrid-poelman-1481227">Astrid Poelman</a>, <a href="https://theconversation.com/institutions/csiro-1035">CSIRO</a> You’re out for dinner with a bunch of friends, one of whom orders pizza with anchovies and olives to share, but you hate olives and anchovies! Do you pipe up with your preferred choice – Hawaiian – or stay quiet? This scene plays out every day around the world. Some people ferociously defend their personal tastes. But many would rather expand their palate, and not have to rock the boat the next time someone in their friend group orders pizza. Is it possible to train your tastebuds to enjoy foods you previously didn’t, like training a muscle at the gym? <h2>What determines ‘taste’?</h2> Taste is a complex system we evolved to help us navigate the environment. It helps us select foods with nutritional value and reject anything potentially harmful. Foods are made up of different compounds, including nutrients (such as proteins, sugars and fats) and <a href="https://www.youtube.com/watch?v=2P_0HGRWgXw">aromas</a> that are detected by sensors in the mouth and nose. These sensors create the <a href="https://www.youtube.com/watch?v=MZn2PMUWO-Y">flavour of food</a>. While taste is what the tastebuds on your tongue pick up, flavour is the combination of how something smells and tastes. Together with texture, appearance and sound, these senses collectively influence your food preferences. <figure><iframe src="https://www.youtube.com/embed/MZn2PMUWO-Y?wmode=transparent&start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe><figcaption>Flavour is the overall impression you get when eating.</figcaption></figure> Many factors influence food preferences, including age, genetics and environment. We each live in our own sensory world and no two people will have the same <a href="https://theconversation.com/curious-kids-why-do-some-people-find-some-foods-yummy-but-others-find-the-same-foods-yucky-77671">experience while eating</a>. Food preferences also change with age. Research has found young children have a <a href="https://pubmed.ncbi.nlm.nih.gov/24452237/">natural preference</a> for sweet and salty tastes and a dislike of bitter tastes. As they grow older their ability to like bitter foods grows. Emerging evidence shows bacteria in saliva can also produce enzymes that influence the taste of foods. For instance, saliva has been shown to cause the release of sulphur aromas in cauliflower. The <a href="https://www.acs.org/pressroom/presspacs/2021/acs-presspac-september-22-2021/childrens-dislike-of-cauliflower-broccoli-could-be-written-in-their-microbiome.html">more sulphur that is produced</a>, the less likely a kid is to enjoy the taste of cauliflower. <h2>Nature versus nurture</h2> Both genetics and the environment play a crucial role in determining food preferences. Twin studies estimate genetics have a moderate influence on food preferences (between 32% and 54%, depending on the food type) in <a href="https://www.sciencedirect.com/science/article/pii/S000291652305027X?via%3Dihub">children</a>, <a href="https://pubmed.ncbi.nlm.nih.gov/27385609/">adolescents</a> and <a href="https://www.cambridge.org/core/journals/twin-research-and-human-genetics/article/dietary-patterns-and-heritability-of-food-choice-in-a-uk-female-twin-cohort/8507AAF01330C599BAC62BCC0EF4CF06">adults</a>. However, since our cultural environment and the foods we’re exposed to also shape our preferences, these <a href="https://pubmed.ncbi.nlm.nih.gov/24452237/">preferences are learned</a> to a large degree. A lot of this learning takes place during childhood, at home and other places we eat. This isn’t textbook learning. <a href="https://www.cabidigitallibrary.org/doi/10.1079/9780851990323.0093">It’s learning</a> by experiencing (eating), which typically leads to increased liking of the food – or by watching what others do (modelling), which can lead to both positive or negative associations. <a href="https://www.sciencedirect.com/science/article/pii/S000291652305027X?via%3Dihub">Research</a> has shown how environmental influences on food preferences change between childhood and adulthood. For children, the main factor is the home environment, which makes sense as kids are more likely to be influenced by foods prepared and eaten at home. Environmental factors influencing adults and adolescents are more varied. <h2>The process of ‘acquiring’ taste</h2> Coffee and beer are good examples of bitter foods people “acquire” a taste for as they grow up. The ability to overcome the dislike of these is largely due to: <ul> <li> the social context in which they’re consumed. For example, in many countries they may be associated with passage into adulthood. </li> <li> the physiological effects of the compounds they contain – caffeine in coffee and alcohol in beer. Many people find these effects desirable. </li> </ul> But what about acquiring a taste for foods that don’t provide such desirable feelings, but which are good for you, such as kale or fatty fish? Is it possible to gain an acceptance for these? Here are some strategies that can help you learn to enjoy foods you currently don’t: <ol> <li> eat, and keep eating. Only a small portion is needed to build a liking for a specific taste over time. It may take 10–15 attempts or more before you can say you “like” the food. </li> <li> <a href="https://www.sciencedirect.com/science/article/pii/S0950329302001106">mask bitterness</a> by eating it with other foods or ingredients that contain salt or sugar. For instance, you can pair bitter rocket with a sweet salad dressing. </li> <li> eat it repeatedly in a positive context. That could mean eating it after playing your favourite sport or with people you like. Alternatively, you could eat it with foods you already enjoy; if it’s a specific vegetable, try pairing it with your favourite protein. </li> <li> eat it when you’re hungry. In a hungry state you’ll be more willing to accept a taste you might not appreciate on a full stomach. </li> <li> remind yourself why you want to enjoy this food. You may be changing your diet for health reasons, or because you’ve moved countries and are struggling with the local cuisine. Your reason will help motivate you. </li> <li> start young (if possible). It’s easier for children to learn to like new foods as their tastes are less established. </li> <li> remember: the more foods you like, the easier it’ll become to learn to like others. </li> </ol> A balanced and varied diet is essential for good health. <a href="https://www.sciencedirect.com/science/article/pii/S0195666315003438?ref=pdf_download&fr=RR-2&rr=82a5fd5069821f63">Picky eating</a> can become a problem if it leads to vitamin and mineral deficiencies – especially if you’re avoiding entire food groups, such as vegetables. At the same time, eating too many tasty but energy-dense foods can increase your risk of chronic disease, including obesity. Understanding how your food preferences have formed, and how they can evolve, is a first step to getting on the path of healthier eating.<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/215999/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/nicholas-archer-181464">Nicholas Archer</a>, Research Scientist, Sensory, Flavour and Consumer Sciences, <a href="https://theconversation.com/institutions/csiro-1035">CSIRO</a> and <a href="https://theconversation.com/profiles/astrid-poelman-1481227">Astrid Poelman</a>, Principal Researcher, Public Health & Wellbeing Group, <a href="https://theconversation.com/institutions/csiro-1035">CSIRO</a> Image credits: Shutterstock 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/taste-depends-on-nature-and-nurture-here-are-7-ways-you-can-learn-to-enjoy-foods-you-dont-like-215999">original article</a>.

Food & Wine

Extraordinary snaps from around the world for the Nature Photographer of the Year awards

Every year, the <a href="https://naturephotographeroftheyear.com" target="_blank" rel="noopener">Nature Photographer of the Year</a> awards showcase the best that Mother Nature has to offer. For the 2023 competition, photographers from all around the world have captured beautiful snaps of wildlife in their natural habitat, picturesque landscapes and much more. The annual competition is an initiative of Nature Talks, the organisation responsible for the Nature Talks Photo Festival that takes place in the Netherlands. This year, the competition saw entrant from South Africa, Germany, the USA, England, Finland, France, Luxembourg and many more corners of the globe. This year's winner is a photographer hailing from Canada, Jacquie Matechuk, who stole the show with her photo of the Spectacled Bear. Chairman Marco Gaiotti explained why her photo was chosen as the winner, "The Spanish moss hanging from this centuries-old fig tree gives an incredible sense of three-dimensionality while the soft light filtering through the colours highlights the profound connection between species and habitat in this image." "Finally, the pose of this spectacled bear fits perfectly into the texture of the photograph. Congratulations to Jacquie Matechuk for this outstanding photograph of the spectacled bear." All image credits: Nature Photographer of the Year

International Travel

9 tricky ways to clean your house while you sleep

1. Soak a showerhead Mineral deposits can clog a showerhead and affect its pressure over time. To clean, fill a plastic bag with vinegar. Place the bag around the showerhead, submerging it in the liquid. Secure the bag to the neck of the showerhead with a twist tie and leave overnight. The vinegar will break down the buildup by morning. 2. Remove stains on pots and pans If a batch of cookies left your baking sheet gunky, let a dryer sheet clean it overnight. Place the sheet on the pan and fill with warm water. Cleaning agents in the dryer sheet will help loosen stuck-on grime and stains. In the morning, easily wipe off with a sponge. 3. Polish stove grates Cleaning greasy, food-splattered stove burners can be a tiresome chore. Before you go to bed, seal each burner in a large plastic bag with ¼ cup of ammonia. The overnight soak will make it easy to wipe off the surface with a sponge the following day. 4. Banish rust on tools If your rusty tools have seen better days, fill a tray with Coca-Cola. Submerge the tools, allow to soak overnight, and scrub clean with a stiff brush in the morning. The soda’s phosphoric acid will help loosen the gunk. 5. Eliminate wet messes If your sofa or carpet became the victim of an icky, wet mess (say, vomit or urine), mix a paste of baking soda and water to soak it up. Use a spoon to spread the paste over the soiled area. Allow to dry overnight, then vacuum in the morning. 6. Descale a kettle Limescale can build up from calcium carbonate deposits in water, leading to an off-white, chalky deposit in your kettle. To clean, cut a lemon into large slices, place in the kettle, and add water. Bring to a boil, then take the kettle off the heat and leave overnight. The lemon’s citric acid will loosen the limescale. Toss the fruit and water mixture in the morning and rinse before using your newly cleaned kettle. 7. Clean bath toys To make grubby rubber duckies, boats, and other bath toys new again, mix one gallon warm water with ¾ cup vinegar. Soak the toys overnight. Rinse thoroughly and allow to air dry. 8. Make diamonds sparkle Quickly polish a diamond ring by filling a bottle cap with Windex. Soak the ring overnight and dry with a soft cloth in the morning to remove grime and add shine. 9. Remove red wine stains If red wine marked up your favorite garment, sprinkle the stain with salt and cover with club soda. The salt absorbs the stain while the club soda’s carbonation and sodium helps lift it. Leave overnight before laundering. Image credits: Getty Images This article originally appeared on <a href="https://www.readersdigest.co.nz/diy-tips/9-ways-clean-house-your-sleep" target="_blank" rel="noopener">Reader's Digest</a>.

Home & Garden

6 natural remedies for tinnitus

As anyone who’s ever experienced will agree, tinnitus is about as fun as repeatedly stubbing your big toe. But the good news is needn’t suffer in silence. There is a range of natural remedies available, and while these won’t eliminate tinnitus completely they may be used to help manage the condition. Before we go through some of the natural remedies, it might be useful to take a moment to understand what tinnitus actually is. Tinnitus is a physical condition that is usually caused by a fault in the hearing system where someone experiences noises or ringing in their ears when there is no external noise presents. It’s important to know tinnitus is symptom, and not a disease. It can be caused by a variety of things including exposure to loud noises, earwax blockages, ear-bone changes and age-related hearing lost. 1. Gingko biloba Across the board, gingko biloba is generally considered one of the stronger herbal remedies for tinnitus. This widely available herbal remedy is often used to improve blood circulation, which can reduce the ringing sensation and improve the function of your ears. It also contains handy antibacterial and antifungal properties that can help eliminate any existing infections. 2. Apple cider vinegar Apple cider vinegar provides a particularly useful daily tonic to help reduce the effects of tinnitus. A natural antifungal and anti-inflammatory agent, apple cider vinegar also works to alkalize your body and help rebalance your internal levels. Again, this remedy is quite helpful when it comes to getting rid of any underlying infections or fungus that may be contributing to your tinnitus. 3. Alpha lipoic acid Alpha lipoic acid provides tinnitus sufferers with another handy supplement that can help minimise the effects of this condition. Functioning as an antioxidant, this vitamin-like chemical is known to help treat cell damage and restore natural vitamin levels in your body. Alpha lipoic acid has also been known to help improve neuron function and conduction, which may be contributing factors. 4. Holy basil Here’s another natural remedy for treating tinnitus. Holy basil is known to contain a range of antibacterial properties and can be used to help kill the bacteria that may be contributing to the problem. In addition, holy basil can also be used as a way to provide you with relief from more severe forms of ear pain. It won’t solve the problem, but it will make it easier to manage. 5. Onions and garlic While they might not make your breath smell the best on a hot date, onions and garlic have been used in the past to provide relief for tinnitus sufferers. Onions contain medicinal and antibacterial properties to help fight infections, while garlic can help reduce inflammation and improve blood circulation, which is particularly useful for tinnitus that is caused by high altitudes. 6. Saline solution Here’s another nifty way to treat tinnitus naturally. Saline solution can help clear any blocked nasal passages and ease the pressure caused by excessive fluids that are building up in your sinuses. This simple remedy is a great way to provide effective relief from particular forms of tinnitus. So there you go, six handy ways to help relive yourself of the effects of tinnitus. Ultimately we would recommend that you go to a doctor and get a proper diagnosis if you happen to be suffering from tinnitus, but at the very least it’s handy to know that these natural remedies are around. Image credits: Getty Images

Body

Our planet is burning in unexpected ways - here’s how we can protect people and nature

<a href="https://theconversation.com/profiles/luke-kelly-159658">Luke Kelly</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a>; <a href="https://theconversation.com/profiles/david-bowman-4397">David Bowman</a>, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a>; <a href="https://theconversation.com/profiles/ella-plumanns-pouton-1470045">Ella Plumanns Pouton</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a>; <a href="https://theconversation.com/profiles/grant-williamson-109967">Grant Williamson</a>, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a>, and <a href="https://theconversation.com/profiles/michael-shawn-fletcher-99786">Michael-Shawn Fletcher</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a> People have been using fire for millennia. It is a vital part of many ecosystems and cultures. Yet human activities in the current era, sometimes called the “<a href="https://theconversation.com/did-the-anthropocene-start-in-1950-or-much-earlier-heres-why-debate-over-our-world-changing-impact-matters-209869">Anthropocene</a>”, are reshaping patterns of fire across the planet. <a href="https://www.annualreviews.org/doi/abs/10.1146/annurev-environ-120220-055357">In our new research</a>, published in the Annual Review of Environment and Resources, we used satellite data to create global maps of where and how fires are burning. We calculated about 3.98 million square kilometres of Earth’s land surface burns each year. We also examined research spanning archaeology, climatology, ecology, Indigenous knowledge and paleoecology, to better understand the causes and consequences of fires. Our international team found strong evidence fires are burning in unexpected places, at unusual times and in rarely observed ways. These changes in fire patterns are threatening human lives and modifying ecosystems. But the future does not have to be bleak. There are many opportunities to apply knowledge and practice of fire to benefit people and nature. <h2>Here’s how fire patterns are changing</h2> Exploring multiple approaches and scales enables a deeper understanding of where, when and how fires burn. Satellite data provide evidence of changes in fire patterns at a global scale. <a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2020RG000726">Annual fire season length</a> increased by 14 days from 1979 to 2020 and <a href="https://www.nature.com/articles/s41586-021-04325-1">night fires</a>, which indicate fires that cannot be quickly controlled, increased in intensity by 7.2% from 2003 to 2020. Other changes are apparent only when we look at data from particular regions. An increase in fire size and the frequency of large fires has recently been observed in <a href="https://www.pnas.org/doi/abs/10.1073/pnas.2103135118">forests and woodlands of the western United States</a>. Meanwhile fire-dependent grasslands and savannahs across <a href="https://onlinelibrary.wiley.com/doi/full/10.1111/gcb.14711">Africa</a> and <a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019GL082327">Brazil</a> have experienced reductions in fire frequency. It’s also important to consider the timescale and type of fire when interpreting changes. In Australia, <a href="https://www.nature.com/articles/s41467-021-27225-4">satellite records show</a> the frequency of very large forest fires has increased over the past four decades. At longer time scales, <a href="https://link.springer.com/article/10.1007/s13280-020-01339-3">charcoal and pollen records</a> indicate the frequency of low-intensity fires <a href="https://esajournals.onlinelibrary.wiley.com/doi/10.1002/fee.2395">decreased in parts of southeastern Australia</a> following British colonisation in 1788. <h2>Changes in fire affect air, land and water</h2> Many animals and plants have evolved strategies that enable them to thrive under particular fire patterns. This means changes to fire characteristics can <a href="https://www.science.org/doi/10.1126/science.abb0355">harm populations and ecosystems</a>. <a href="https://conbio.onlinelibrary.wiley.com/doi/full/10.1111/conl.12905">Large and intense fires</a> are reducing the available forest habitat preferred by the greater glider. But a <a href="https://theconversation.com/research-reveals-fire-is-pushing-88-of-australias-threatened-land-mammals-closer-to-extinction-185965">lack of fire can be problematic too</a>. Threatened species of native rodents can benefit from food resources and habitats that flourish shortly after fire. There is evidence that emissions from recent fires are already modifying the atmosphere. The historically exceptional 2019–20 Australian wildfires produced <a href="https://www.science.org/doi/10.1126/science.abe1415#:%7E:text=Intense%2C%20widespread%20bushfires%20in%20Australia,from%20a%20moderate%20volcanic%20eruption.">record-breaking levels of aerosols</a> over the Southern Hemisphere, as well as substantial carbon emissions. The <a href="https://www.nature.com/articles/s41893-020-00610-5">wildfire smoke-related health costs</a> of the 2019–20 wildfires in Australia included an estimated 429 smoke-related premature deaths as well as 3,230 hospital admissions for cardiovascular and respiratory disorders. Changes in fire patterns are modifying water cycles, too. In the western United States, <a href="https://www.pnas.org/doi/10.1073/pnas.2009717118">fires are reaching higher elevations</a> and having strong impacts on <a href="https://www.pnas.org/doi/10.1073/pnas.2200333119">snow</a> and water availability. New studies are revealing how the air, land and water that support life on Earth are connected by fires. Smoke plumes from the 2019–20 Australian wildfires transported nutrients to the Southern Ocean, resulting in <a href="https://www.nature.com/articles/s41586-021-03805-8">widespread phytoplankton blooms</a>. <h2>Humans are responsible for the changes</h2> Human drivers such as climate change, land use, fire use and suppression, and transportation and extinction of species <a href="https://www.annualreviews.org/doi/abs/10.1146/annurev-environ-120220-055357">are causing shifts in fire patterns</a>. Increasing global temperatures and more frequent heatwaves and droughts increase the likelihood of fire by promoting hot, dry and windy conditions. A pattern of extreme fire weather outside of natural climate variation is already emerging in <a href="https://onlinelibrary.wiley.com/doi/10.1111/gcb.15388">North America</a>, <a href="https://link.springer.com/article/10.1007/s10584-014-1183-3">southern Europe</a> and <a href="https://iopscience.iop.org/article/10.1088/1748-9326/ac1e3a/meta">the Amazon basin</a>. Humans modify fire regimes by changing land use for agricultural, forestry and urban purposes. Until recent decades, large fires in tropical forests were uncommon. But <a href="https://www.nature.com/articles/s41586-021-03876-7">deforestation fires</a> used to clear primary forest for agriculture often promotes more frequent and intense uncontrolled fires. Humans have transported plants and animals across the globe, resulting in novel mixes of species that modify fuels and fire regimes. In many parts of the world, <a href="https://www.pnas.org/doi/abs/10.1073/pnas.1908253116">invasive grasses</a> have increased flammability and fire activity. Social and economic changes propel these drivers. Colonisation by Europeans and the displacement of Indigenous peoples and their skilful use of fire has been linked with fire changes in <a href="https://esajournals.onlinelibrary.wiley.com/doi/10.1002/fee.2395">Australia</a>, <a href="https://www.pnas.org/doi/10.1073/pnas.2116264119">North America</a> and <a href="https://royalsocietypublishing.org/doi/10.1098/rstb.2015.0174">South America</a>. <h2>Using knowledge and practice of fire to achieve sustainability goals</h2> <a href="https://www.annualreviews.org/doi/abs/10.1146/annurev-environ-120220-055357">The pace and scale of these changes</a> represent challenges to humanity, but knowledge and practice of fire can help to achieve sustainability goals. This includes: <ul> <li><a href="https://royalsocietypublishing.org/doi/10.1098/rstb.2015.0174">good health and wellbeing</a>, by supporting community-owned solutions and fire practices that increase social cohesion and health</li> <li><a href="https://www.sciencedirect.com/science/article/pii/S0301479718314658">sustainable cities and communities</a>, by designing green firebreaks and mixed-use areas with low fuels, strategically located in the landscape</li> <li><a href="https://www.science.org/doi/10.1126/science.aam7672">life on land</a>, by tailoring use of fire to promote and restore species and ecosystems</li> <li><a href="https://www.nature.com/articles/s41561-021-00867-1">climate action</a>, by applying low-intensity fire to promote the stability of soil organic matter and increase carbon storage</li> <li><a href="https://www.mdpi.com/1660-4601/18/8/3921">reduced inequalities</a>, by allocating resources before, during, and after wildfires to at-risk communities and residents.</li> </ul> As the world changes, society as a whole needs to keep learning about the interplay between people and fire. A deep understanding of fire is essential for achieving a sustainable future – in other words, <a href="https://www.annualreviews.org/doi/abs/10.1146/annurev-environ-120220-055357">a better Anthropocene</a>.<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/213215/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/luke-kelly-159658">Luke Kelly</a>, Associate Professor in Quantitative Ecology, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a>; <a href="https://theconversation.com/profiles/david-bowman-4397">David Bowman</a>, Professor of Pyrogeography and Fire Science, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a>; <a href="https://theconversation.com/profiles/ella-plumanns-pouton-1470045">Ella Plumanns Pouton</a>, PhD candidate, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a>; <a href="https://theconversation.com/profiles/grant-williamson-109967">Grant Williamson</a>, Research Fellow in Environmental Science, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a>, and <a href="https://theconversation.com/profiles/michael-shawn-fletcher-99786">Michael-Shawn Fletcher</a>, Professor in Biogeography, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a> Image credits: Getty Images 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/our-planet-is-burning-in-unexpected-ways-heres-how-we-can-protect-people-and-nature-213215">original article</a>.

Travel Trouble

What’s in a name? Quite a lot if it’s prosecco, parmesan or mozzarella

<a href="https://theconversation.com/profiles/steven-greenland-2064">Steven Greenland</a>, <a href="https://theconversation.com/institutions/charles-darwin-university-1066">Charles Darwin University</a> Prosecco might evoke warm summer evenings while prosciutto conjures scenes of generous platters at a casual weekend lunch. But would “sparkling wine” or “thinly sliced ham” have the same impact? Australian producers would argue they wouldn’t. They are fighting a push by the European Union to stop them from using these and other terms that indicate the geographical origin of numerous cheeses, wines and other foodstuffs now widely produced in Australia. This stoush over using European names for locally made products has stalled <a href="https://www.abc.net.au/news/2023-07-11/european-union-trade-deal-prosecco-feta-geographic-indicators/102583310">this week’s trade talks</a>, with the EU refusing Australia better access to their markets unless Australia agrees to rebrand its products. <a href="https://www.news.com.au/national/politics/anthony-albaneses-warning-on-australiaeu-trade-talks/news-story/fa15fa19a945311c21ac1326c1675653">Prime Minister Anthony Albanese </a>said Australia was keen to conclude the trade agreement but would not sign a deal that wasn’t in Australia’s interests. He is strongly backed by the National Farmers’ Federation and food producers. <h2>So why does Europe want to control the use of food names?</h2> Consumers increasingly want to know their foods’ provenance. They also pay premiums for guarantees about origin and quality. There has been a corresponding rise in so-called geographical indicator registrations, with <a href="https://agenceurope.eu/en/bulletin/article/13128/21">the 3,500th</a> listed earlier this year. Items included on the EU Geographical Indications register cover different foodstuffs that are either applying for or have been accepted for having their geographic origin related name protected from being used for similar foods produced elsewhere. Europe has the highest number of registered products, with most relating to wine, agricultural products and foodstuffs, as well as spirits and beers. Champagne is among those with a widely recognised connection to its place of origin which assures consumers about the regional and cultural values as well as the products’ characteristics and quality. Like high value household product brand names (for example, Coca-Cola which has been valued at US $97.88 billion) geographical indication registered names also attract substantial dollar values. This is because of strong international awareness, familiarity, and appeal among consumers. The geographic indicator name often attracts a price that can easily be double that of a similar but non-registered product. Registered products can therefore bring in significant revenue to the European Union member countries. They contribute to <a href="https://onlinelibrary.wiley.com/doi/10.1111/jwip.12208">regional development </a>by stimulating tourism and by helping to reverse population decline often experienced in rural areas. Like household brands, the names which indicate a product’s origins, are recognised as intellectual property. They have consequently become an integral part of international trade agreements. <h2>What would Australia gain by agreeing to European product names?</h2> In return for complying with European Union demands, Australian producers would gain access to European markets of [<a href="https://www.afr.com/politics/federal/minister-flies-to-brussels-amid-signs-of-eu-trade-deal-breakthrough-20230708-p5dmre">445 million people</a>] with a GDP of $24 trillion. The lost opportunity of non-compliance is best illustrated by Brexit. Since Brexit, UK <a href="https://www.euronews.com/my-europe/2022/12/29/brexit-draft-deal-first-of-many-hurdles-to-a-smooth-exit">exports to Europe have fallen</a> and UK farmers have faced significant challenges finding <a href="https://www.theguardian.com/politics/2022/dec/29/uk-farmers-impact-brexit-trade-deal-losing-common-agricultural-policy">alternative markets</a>. If Australia agrees to the European Union’s conditions to get a trade deal through then producers will need to rename some of their products. This would be a large and costly exercise but might give local producers an opportunity to capitalise on the growing consumer demand for locally sourced food and promote Australia’s unique geographical brand values. Recent research conducted by Charles Darwin University reveals some of the unique brand values of Australian agri-food products, including unique selling points of products from the <a href="https://researchers.cdu.edu.au/en/publications/nt-shelf-stable-food-products-market-opportunity-analysis">Northern Territory</a>. Selling points included the unique climate, soil and traditional community values as selling points. Australia’s reputation for quality and ethically produced goods was also important. Such values may lead to Australia developing more of its own geographical indication registration requirements in the future. Rather than fight the rising tide of European Union registrations, the federal government might embrace the trend, in conjunction with renewed promotion of Australia’s geographical brand benefits. Should the government choose to comply with Europe’s demands then producers will need support to rebrand some of their products. Government and departments such as CSIRO should be keen to support this as it can only strengthen Australia’s agri-food sector’s international reputation.<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/209505/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/steven-greenland-2064">Steven Greenland</a>, Professor in Marketing, <a href="https://theconversation.com/institutions/charles-darwin-university-1066">Charles Darwin University</a> Image credits: Getty Images This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/whats-in-a-name-quite-a-lot-if-its-prosecco-parmesan-or-mozzarella-209505">original article</a>.

Food & Wine

Outrage after renters confronted with cleaning “scoring system”

An Australian real estate agent has come under fire for their “demoralising” scoring system for tenants during routine inspections. One fired up renter said they were shocked to receive a scorecard from the agent after they complied with an inspection, and shared their feedback on Reddit. The scorecard rated the tenant’s efforts cleaning the property in 17 different rooms and areas, marking them on cleanliness, and if the areas were damaged or required maintenance. The renter was then also given an overall rating out of five stars, based on the upkeep of their rental home. The Reddit user showed that they received just three and half stars, despite being marked down in only one area due to a light globe not working. In their post, the tenant said they had made every effort to clean the home, adding that the rating was “demoralising”. “I’ve been renting a long time, and my deep cleaning routine is based around inspections,” they explained. “I go all out - every room in my little 3x2 villa is given a spring clean, every surface is washed including walls, doors, lights, windows, carpets etc.” “Had my latest inspection a few weeks ago and just received the report. Despite the agent commenting once again that she never sees houses as clean as mine, and taking 112 (!) photos of every single thing that shows how great the condition of the house is - having one light globe not working is so terrible that I’m scored three and a half out of five.” The renter went on to say that they had only recently discovered that the broken light globe was the real estate’s responsibility to replace, and does not warrant such a severe marking down in their “score”. “The globe in question is a downlight fitting. We have so many downlights that I don’t even use this particular one,” they continued. “I can’t replace the globe itself, I need to get into the roof to replace the whole unit. Thanks to people here I’ve learned this isn’t even my responsibility to fix!” The renter’s post sparked a huge outrage online, with many up in arms over the current state of the rental market and unrealistic expectations of estate agents. One person said, “I fully believe that the average renter keeps a home to a higher standard than an owner, and it seems deliberately demoralising that someone could be marked down for having a light out.” Another added, “This is ridiculously petty, and more importantly, totally irrelevant to the purpose of a periodic inspection. Which is to identify whether any maintenance is needed.” A third person took their anger out on the entire system, summing it up by writing, “I sort of wonder what little lightbulb clicks in your mind and you wake up one day and ask yourself, ‘How can I be a massive c*** who offers no value to society? I know! I will get into real estate.’” Image credits: Getty Images / Reddit

Real Estate

What do the different colours of mould mean in my house?

<a href="https://theconversation.com/profiles/michael-taylor-228803">Michael Taylor</a>, <a href="https://theconversation.com/institutions/flinders-university-972">Flinders University</a> You may be interested (or possibly horrified) to discover you ingest and inhale thousands of tiny life forms on a daily basis. The air and surfaces around you are home to multitudes of <a href="https://www.sciencedirect.com/science/article/abs/pii/B978012394805200004X">bacteria, fungi, viruses</a>, mites, algae and <a href="https://www.sciencedirect.com/science/article/abs/pii/S0043135400004206">protozoa</a>. Your skin isn’t much better, with a complex ecosystem of organisms called commensals which aren’t necessarily good or bad, but will shift in their composition depending on <a href="https://www.nature.com/articles/nature11053">where you live</a>, <a href="https://www.mdpi.com/2079-9284/6/1/2">the products you use</a> and <a href="https://elifesciences.org/articles/458">the pets you have</a>. Most of these creatures are generally undetectable due to their microscopic size and low concentrations. But when they find a niche they can exploit, you might notice them by their smell, or the appearance of unwanted staining and colour changes. A lot of this fungal growth is what we call mould. We’ve all been disappointed in ourselves at one time or another, lifting a neglected orange out of the fruit bowl to discover the bottom half is covered in a velvety blue-green growth. But what do the myriad colours that appear on our stuff tell us about the world we try not to think about? <h2>Black</h2> Often black staining is quite a disturbing occurrence. The concept of toxic black mould is one many people have become aware of due to <a href="https://theconversation.com/fungi-after-the-floods-how-to-get-rid-of-mould-to-protect-your-health-111341">flood impacts</a>. A quick online search will likely terrify you, but not all black discolouration is due to the same organisms, and almost none of it will outright cause you harm. Stachybotrys is the one known as toxic black mould. It often turns up on <a href="https://ehp.niehs.nih.gov/doi/pdf/10.1289/ehp.99107s3505">building materials that have been wet for a long time</a>. <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/533907/original/file-20230626-67275-zxd3ah.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img style="display: block; margin-left: auto; margin-right: auto;" src="https://images.theconversation.com/files/533907/original/file-20230626-67275-zxd3ah.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/533907/original/file-20230626-67275-zxd3ah.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=384&fit=crop&dpr=1 600w, https://images.theconversation.com/files/533907/original/file-20230626-67275-zxd3ah.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=384&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/533907/original/file-20230626-67275-zxd3ah.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=384&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/533907/original/file-20230626-67275-zxd3ah.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=483&fit=crop&dpr=1 754w, https://images.theconversation.com/files/533907/original/file-20230626-67275-zxd3ah.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=483&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/533907/original/file-20230626-67275-zxd3ah.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=483&fit=crop&dpr=3 2262w" alt="A severely mouldy wall covered in grey and black blotches" /></a><figcaption></figcaption>When the grout in your shower turns black though, that’s a different fungus called <a href="https://www.ajol.info/index.php/ajb/article/view/130453">Aureobasidium</a>. It’s slimy, sticky and somewhere between a filamentous mould, which grows threadlike roots through whatever it’s eating, and a yeast, which prefer a free-floating, single-celled style of life.</figure> Bleaching will often kill Aureobasidium, but the dark pigmentation will likely hang around – harmlessly, but stubbornly. <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/533894/original/file-20230626-19-68wsem.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/533894/original/file-20230626-19-68wsem.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/533894/original/file-20230626-19-68wsem.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=338&fit=crop&dpr=1 600w, https://images.theconversation.com/files/533894/original/file-20230626-19-68wsem.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=338&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/533894/original/file-20230626-19-68wsem.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=338&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/533894/original/file-20230626-19-68wsem.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=425&fit=crop&dpr=1 754w, https://images.theconversation.com/files/533894/original/file-20230626-19-68wsem.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=425&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/533894/original/file-20230626-19-68wsem.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=425&fit=crop&dpr=3 2262w" alt="A close-up of white grout between grey tiles with black spots on it" /></a></figure> <h2>Blue</h2> That blue orange I mentioned before, you can thank Penicillium for that. The organism that <a href="https://www.sciencedirect.com/science/article/abs/pii/S0168160512000852">gives us blue cheese</a> and the antibiotic penicillin is also responsible for producing a dense growth of mould that almost looks like smoke when disturbed, spreading millions of spores onto the rest of your fruit bowl. Penicillium is a big group with <a href="https://www.sciencedirect.com/science/article/pii/S0166061620300129">hundreds of species</a>, ranging from recognised pathogens to species yet to be named. However, the ones that turn up in our homes are generally the same “weed” species that simply cause food spoilage or grow in soil. <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/533895/original/file-20230626-107392-7jinnz.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/533895/original/file-20230626-107392-7jinnz.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/533895/original/file-20230626-107392-7jinnz.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=400&fit=crop&dpr=1 600w, https://images.theconversation.com/files/533895/original/file-20230626-107392-7jinnz.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=400&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/533895/original/file-20230626-107392-7jinnz.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=400&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/533895/original/file-20230626-107392-7jinnz.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=503&fit=crop&dpr=1 754w, https://images.theconversation.com/files/533895/original/file-20230626-107392-7jinnz.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=503&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/533895/original/file-20230626-107392-7jinnz.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=503&fit=crop&dpr=3 2262w" alt="Close-up of a bright orange with a fuzzy blue mould spot on it" /></a></figure> <h2>Yellow and orange</h2> We often think of fungi as organisms that thrive in the dark, but that’s not always true. In fact, some need exposure to light – and ultraviolet (UV) light in particular – to complete their life cycle. Many plant pathogens use UV light exposure as a trigger to produce their spores, and then protect their DNA by <a href="https://link.springer.com/article/10.1134/S0003683814020094">hiding it behind melanin-containing shells</a>. Stemphylium and Epicoccum turn up in our homes from time to time, often hitching a ride on natural fibres such as jute, hemp and hessian. They produce a spectrum of staining that can often turn damp items yellow, brown or orange. <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/533948/original/file-20230626-15121-eh3869.png?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/533948/original/file-20230626-15121-eh3869.png?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/533948/original/file-20230626-15121-eh3869.png?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=450&fit=crop&dpr=1 600w, https://images.theconversation.com/files/533948/original/file-20230626-15121-eh3869.png?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=450&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/533948/original/file-20230626-15121-eh3869.png?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=450&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/533948/original/file-20230626-15121-eh3869.png?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=566&fit=crop&dpr=1 754w, https://images.theconversation.com/files/533948/original/file-20230626-15121-eh3869.png?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=566&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/533948/original/file-20230626-15121-eh3869.png?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=566&fit=crop&dpr=3 2262w" alt="A piece of wood laminate with yellow patches on it" /></a><figcaption></figcaption></figure> We’re all fairly familiar with the green spots that turn up on mouldy bread, cake and other food items. Often we try to convince ourselves if we just cut off the bad bit, we can still salvage lunch. Sadly that’s not the case, as the roots of the fungi – collectively called mycelium – spread through the food, digesting and collecting sufficient nutrients to pop out a series of tiny fruiting bodies which produce the coloured spores you see. The green tuft is often from a group of fungi called Aspergillus. Under the microscope they look rather like the puffy top of a dandelion gone to seed. Like Penicillium, Aspergillus is another big fungal group with lots of species that turn up virtually in every environment. Some are <a href="https://academic.oup.com/mmy/article/43/Supplement_1/S87/1748298">heat tolerant</a>, some <a href="https://www.tandfonline.com/doi/full/10.1080/21553769.2015.1033653">love acid</a> and some will happily produce spores that <a href="https://www.sciencedirect.com/science/article/abs/pii/S1749461311000406">stay airborne for days to months at a time</a>. In the green gang is also a fungus called Trichoderma, which is Latin for “hairy skin”. Trichoderma produces masses of forest-green, spherical spores which tend to grow on wet cardboard or dirty carpet. <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/533897/original/file-20230626-160496-7cuh4q.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/533897/original/file-20230626-160496-7cuh4q.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/533897/original/file-20230626-160496-7cuh4q.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=400&fit=crop&dpr=1 600w, https://images.theconversation.com/files/533897/original/file-20230626-160496-7cuh4q.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=400&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/533897/original/file-20230626-160496-7cuh4q.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=400&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/533897/original/file-20230626-160496-7cuh4q.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=503&fit=crop&dpr=1 754w, https://images.theconversation.com/files/533897/original/file-20230626-160496-7cuh4q.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=503&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/533897/original/file-20230626-160496-7cuh4q.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=503&fit=crop&dpr=3 2262w" alt="A pile of green grains on a small round tray" /></a></figure> <h2>Pink, purple and red</h2> There are plenty to speak of in this category. And there is also a common bacterium that makes the list. Neurospora, also known as the red bread mould, is one of the most studied fungi in scientific literature. It’s another common, non-hazardous one that has been used as <a href="https://bsapubs.onlinelibrary.wiley.com/doi/full/10.3732/ajb.1400377">a model organism</a> to observe fungal genetics, evolution and growth. <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/533913/original/file-20230626-24-eh3869.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img style="display: block; margin-left: auto; margin-right: auto;" src="https://images.theconversation.com/files/533913/original/file-20230626-24-eh3869.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/533913/original/file-20230626-24-eh3869.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=400&fit=crop&dpr=1 600w, https://images.theconversation.com/files/533913/original/file-20230626-24-eh3869.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=400&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/533913/original/file-20230626-24-eh3869.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=400&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/533913/original/file-20230626-24-eh3869.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=503&fit=crop&dpr=1 754w, https://images.theconversation.com/files/533913/original/file-20230626-24-eh3869.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=503&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/533913/original/file-20230626-24-eh3869.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=503&fit=crop&dpr=3 2262w" alt="A block of orange mouldy substance sitting on a banana leaf" /></a><figcaption></figcaption>Fusarium is less common indoors, being <a href="https://www.sciencedirect.com/science/article/pii/S0261219416302794">an important crop pathogen</a>, but will sometimes turn spoiled rice purple. It also occasionally turns up on wet cement sheet, causing splotchy violet patches. Fusarium makes large, sticky, moon-shaped spores that have evolved to spread by rain splashes and hang onto plants. However, it is fairly bad at getting airborne and so doesn’t tend to spread very far from where it’s growing.</figure> Finally in this category, that pink scum that turns up around bathroom taps or in the shower? It’s actually a bacterium called Serratia. It will happily chew up the soap scum residue left over in bathrooms, and has been shown to <a href="https://journals.asm.org/doi/full/10.1128/AEM.02632-10">survive in liquid soaps and handwash</a>. <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/533900/original/file-20230626-98733-ggql6s.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/533900/original/file-20230626-98733-ggql6s.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/533900/original/file-20230626-98733-ggql6s.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=337&fit=crop&dpr=1 600w, https://images.theconversation.com/files/533900/original/file-20230626-98733-ggql6s.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=337&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/533900/original/file-20230626-98733-ggql6s.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=337&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/533900/original/file-20230626-98733-ggql6s.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=424&fit=crop&dpr=1 754w, https://images.theconversation.com/files/533900/original/file-20230626-98733-ggql6s.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=424&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/533900/original/file-20230626-98733-ggql6s.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=424&fit=crop&dpr=3 2262w" alt="Close-up of white tile grout covered in a pink translucent film" /></a><figcaption></figcaption></figure> <h2>White</h2> When fungi were first being classified and were eventually given their own phylogenetic kingdom, there were lots of wonderful and not strictly categorical ways we tried to split them up. One of these was hyaline and non-hyaline, essentially referring to transparent and coloured, respectively. One of the interesting non-pigmented moulds you may well catch sight of is a thing called Isaria farinosa (“farinosa” being Latin for “floury”). This fungus is a parasite of some moths and cicadas and is visible as brilliant white, <a href="https://www.tandfonline.com/doi/abs/10.1080/09583150802471812">tree-shaped growths on their unfortunate hosts</a>. <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/533911/original/file-20230626-72187-xubf6k.jpeg?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/533911/original/file-20230626-72187-xubf6k.jpeg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/533911/original/file-20230626-72187-xubf6k.jpeg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=450&fit=crop&dpr=1 600w, https://images.theconversation.com/files/533911/original/file-20230626-72187-xubf6k.jpeg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=450&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/533911/original/file-20230626-72187-xubf6k.jpeg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=450&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/533911/original/file-20230626-72187-xubf6k.jpeg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=566&fit=crop&dpr=1 754w, https://images.theconversation.com/files/533911/original/file-20230626-72187-xubf6k.jpeg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=566&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/533911/original/file-20230626-72187-xubf6k.jpeg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=566&fit=crop&dpr=3 2262w" alt="A dead bug on a green forest floor with white and yellow growths sticking out of it" /></a><figcaption></figcaption></figure> So when you notice the world around you changing colour, you can marvel with your newfound knowledge at the microscopic wonders that live complex lives alongside yours. Then maybe clean it up, and give the fruit bowl a wash. <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/207737/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> Image credit: Getty / Shutterstock <a href="https://theconversation.com/profiles/michael-taylor-228803">Michael Taylor</a>, Adjunct academic, <a href="https://theconversation.com/institutions/flinders-university-972">Flinders University</a> 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-do-the-different-colours-of-mould-mean-in-my-house-207737">original article</a>.

Home & Garden

The hidden dangers of household products

The materials, fabrics and fragrances contained inside our homes are host to thousands of chemicals that may pose a threat to human health. Healthy home expert Nicole Bijlsma says there simply aren’t enough regulations to ensure the products and materials in our homes are safe for consumers. “We have this incredible, unregulated, chemical onslaught in our household products, personal care products, building materials and cleaning products which is why the burden of chemicals is increasing with each generation,” Bijlsma says. “Just because it’s on the supermarket shelf doesn’t mean it’s been tested.” The largely unregulated cleaning product industry is often placed under scrutiny in the fight against chemicals but Bijsma says this issue extends to all areas of the home. “What happens is we wait for the disease to occur in the general population before we look back and realise [the harm]…It’s a stupid system; it doesn’t protect consumers and it certainly does not protect the most vulnerable in our society– our children and the unborn fetus.” Only through thorough research can consumers determine where their products are being sourced, under what conditions they’ve been made and the impact they may have on health. Even then there are gaps. Imported items are not under the same regulations as those made in New Zealand. “A lot of the products, especially furnishings, you can’t load with formaldehyde but if you import them from Asia as most people do, they’re going to be loaded with chemicals…Bijlsma says. Bijlsma advises going back to basics when selecting materials and products, reducing the chemical load, choosing natural fibres and buying home made. “The big problem is most chemicals in building materials and household products have never been tested for their impact on human health,” Bijlsma says. Creating a healthy home is of the utmost importance to homeowner Irena Bukhshtaber, who has recently extended her home to be 100 per cent sustainable and hypoallergenic. “Because our industry standards are so high, usually it’s a local product too…Watch out for imports, from floorboards to air-conditioning, as there’s no way to guarantee what they say on the label unless the seller can guarantee provenance or knows the company.” Despite the time-consuming research process (three years) of renovating the home to a healthy standard Bukhshtaber says the outcome has been worth the effort. “How difficult is it to live with sick or tired family members? How hard is it to live your values? If the outcome is positive then it’s not difficult, but it is time consuming and does require you to spend time researching, calling and discussing with suppliers.” To keep her costs down when renovating, Bukhshtaber advises determining the elements of a home that matter most to you, whether this be using recycled materials, limited chemicals, high-quality design, ethical manufacturing or buying New Zealand made. “None of these things are mutually exclusive but you do need a hierarchy in mind as no one has unlimited budget,” Bukhshtaber says. Written by Amelia Barnes. First appeared on <a href="http://www.domain.com.au/" target="_blank" rel="noopener">Domain.com.au.</a> Images: Getty

Home Hints & Tips

How to clean these bathroom items that get overlooked

Cleaning the bathroom will not only make your house feel nicer for but it is important for your hygiene as so many bathroom items are used on a daily basis. Even if your bathtub, shower, tiles and sink is clean, these bathroom items deserve your frequent attention. 1. Toothbrush and toothbrush holder For obvious reasons keeping your toothbrush and toothbrush holder clean is vital to your mouth health. To keep your toothbrush clean, make sure you rinse it well after each use to avoid a build-up of toothpaste. Frequently you should do a deep clean of your toothbrush and this can be done by leaving it in a cup of vinegar for 30 minutes. The vinegar will remove the build of bacteria on your toothbrush. Remember to replace your toothbrush every 3-4 months and then you can use your old one for cleaning. A toothbrush holder can be cleaned thoroughly by putting it in the dishwasher or you can rinse it out in hot water and dish soap to remove the build-up of gunk. 2. Loofah Loofahs do a great of cleaning bodies but it is important to remember to clean them as well. Your loofah can be cleaned by submerging in a 50/50 mixture of hot water and vinegar for an hour. Then leave it to dry. This method can also be used on sponges or wash cloths. 3. Razors It is important to clean your razor as a wet razor can become rusty and a moist blade can cause ingrown hairs and irritation when shaving. To keep your razor in top condition, put some rubbing alcohol on a cotton pad and swipe across your razor. Dry your razor with a towel once you are done and store your razor in a dry place in your bathroom. 4. Toilet brush To give your toilet brush a thorough clean, rest the brush between the toilet bowl and seat after cleaning the toilet. Spray the brush with a disinfectant and then let it sit as it drips for ten minutes or so. Then rinse the brush in very hot water and allow it to drip dry again. The brush holder should also be cleaned with disinfectant and then leaving it for ten minutes and rinsing with hot water. 5. Plunger After each use of the plunger, spray it with a disinfectant and leave for ten minutes and then let it air dry. It is helpful to store your plunger with a plastic bag so that way, after you use it you can put in the bag and then take it somewhere to clean to avoid any dripping. Don’t re-use the plastic bag. Image: Getty

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