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What’s the difference between liquid and powder laundry detergent? It’s not just the obvious

<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> When shopping for a laundry detergent, the array of choices is baffling. All of the products will likely get your laundry somewhat cleaner. But what gets the best outcome for your clothes and your budget? Do you want whiter whites? Do you need enzymes? And what’s the difference between a powder and liquid detergent? As is often the case, knowing more about the chemistry involved will help you answer those questions. <h2>What is a detergent?</h2> The active ingredients in both laundry powders and liquids are “surfactants”, also known as detergents (hence the product name). These are typically charged or “ionic” molecules that have two distinct parts to their structure. One part interacts well with water and the other interacts with oils. This useful property allows surfactants to lift grease and grime from fabrics and suspend it in the water. Surfactants can also form bubbles. Metal salts dissolved in your water can limit the performance of the surfactants. So-called hard water contains lots of dissolved calcium and magnesium salts which can readily form soap scum. Modern laundry detergents therefore contain phosphates, water softeners and other metal “sequestrants” to stop the formation of soap scum. Phosphates can cause algal blooms in fresh water environments. This is why modern detergent formulations <a href="https://accord.asn.au/sustainability/phosphorus-standard/">contain smaller amounts of phosphates</a>. Many products also contain optical brighteners. These chemicals absorb ultraviolet light and release blue light, which provides the “whiter white” or “brighter colour” phenomenon. Laundry detergents typically contain fragrances. These aren’t essential to the chemistry of cleaning, but give the impression the clothes are fresh. Lastly, some laundry detergents contain enzymes – more on those later. <h2>What’s in laundry powder?</h2> While detergents and ingredients to avoid soap scum are the most important components, they aren’t the most abundant. The main ingredients in powders are salts (like sodium sulfate) that add bulk and stop the powder from clumping. Another common salt added to laundry powders is sodium carbonate, also known as washing soda. Washing soda (a chemical cousin of <a href="https://theconversation.com/vinegar-and-baking-soda-a-cleaning-hack-or-just-a-bunch-of-fizz-225177">baking soda</a>) helps to chemically modify grease and grime so they dissolve in water. Laundry powders also frequently contain oxidising agents like sodium percarbonate. This is a stable combination of washing soda and hydrogen peroxide. An additive known as tetraacetylethylenediamine activates the percarbonate to give a mild bleaching effect. Chemically, powders have an advantage – their components can be formulated and mixed but kept separate in a solid form. (You can usually see different types of granules in your laundry powder.) <h2>What’s in laundry liquid?</h2> The main ingredient of laundry liquid is water. The remaining ingredients have to be carefully considered. They must be stable in the bottle and then work together in the wash. These include similar ingredients to the powders, such as alkaline salts, metal sequestrants, water softeners and surfactants. The surfactants in liquid products are often listed as “ionic” (charged) and “non-ionic” (non-charged). Non-ionic surfactants can be liquid by default, which makes them inappropriate for powdered formulations. Non-ionic surfactants are good at suspending oils in water and don’t form soap scum. Liquid detergents also contain preservatives to prevent the growth of microbes spoiling the mixture. There are also microbial implications for inside the washing machine. Liquid products can’t contain the peroxides (mild bleaching agents) found in powdered products. Peroxides kill microbes. The absence of peroxides in liquid detergents makes it more likely for <a href="https://www.mdpi.com/1420-3049/27/1/195#B15-molecules-27-00195">mould biofilms to form</a> in the machine and for bacteria to be transferred between items of clothing. As an alternative to peroxides, liquids will typically contain only optical brighteners. Liquids do have one advantage over powders – they can be added directly to stains prior to placing the item in the wash. A recent “convenience” version of liquid formulas are highly concentrated detergent pods. Colourful and bearing a resemblance to sweet treats, these products have been found to be <a href="https://poisoncenters.org/track/laundry-detergent-packets">dangerous to young children and people with cognitive impairment</a>. Pods also remove the option to add less detergent if you’re running a smaller load or just want to use less detergent in general. <h2>So, what about enzymes?</h2> Enzymes are naturally evolved proteins included in laundry products to remove specific stains. Chemically, they are catalysts – things that speed up chemical reactions. Enzymes are named for the molecules they work on, followed by the ending “-ase”. For example, lipase breaks down fats (lipids), protease breaks down protein, while amylase and mannanase break down starches and sugars. These enzymes are derived from organisms found in cool climate regions, which helps them function at the low temperature of washing water. Running an excessively hot wash cycle can damage or denature the enzyme structure, stopping them from assisting in your wash. Think of an egg white <a href="https://theconversation.com/how-to-make-the-perfect-pavlova-according-to-chemistry-experts-196485">changing from translucent to white while cooked</a> – that’s protein denaturing. If your detergent contains enzymes, the washing temperature should be neither too hot nor too cold. As a guide, temperatures of 15–20°C are used in <a href="https://environment.ec.europa.eu/document/download/557d8ab5-4e75-41a4-a901-1548be7f685d_en">standard laundry tests</a>. <h2>Is powder or liquid better?</h2> We make consumer choices guided by performance, psychology, cost, scent, environmental considerations and convenience. It’s worth experimenting with different products to find what works best for you and fits your needs, household budget and environmental considerations, such as having <a href="https://theconversation.com/curious-kids-why-can-some-plastics-be-recycled-but-others-cant-229270">recyclable packaging</a>. Personally, I wash at 20°C with half the recommended dose of a pleasant-smelling laundry powder, packaged in recyclable cardboard, and containing a wide range of enzymes and an activated peroxide source. Knowing a little chemistry can go a long way to getting your clothes clean. However, laundry detergent manufacturers don’t always disclose the full list of ingredients on their product packaging. If you want more information on what’s in your product, you have to look at the product website. You can also dig a little deeper by reading documents called <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 sheets</a> (SDS). Every product containing potentially hazardous chemicals must have an SDS.<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/239850/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/whats-the-difference-between-liquid-and-powder-laundry-detergent-its-not-just-the-obvious-239850">original article</a>.

Home & Garden

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

<a href="https://theconversation.com/profiles/alessandra-sutti-1513345">Alessandra Sutti</a>, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a>; <a href="https://theconversation.com/profiles/amol-patil-1513347">Amol Patil</a>, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a>, and <a href="https://theconversation.com/profiles/maryam-naebe-1513346">Maryam Naebe</a>, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a> Orbiting 400 kilometres above Earth’s surface, the astronauts on the International Space Station live a pretty normal social life, if not for one thing: they happily wear their unwashed clothes <a href="https://www.nasa.gov/centers-and-facilities/glenn/nasa-glenn-interns-take-space-washing-machine-designs-for-a-spin/">for days and weeks at a time</a>. They can’t do their laundry <a href="https://www.esa.int/Enabling_Support/Space_Engineering_Technology/Keeping_your_underwear_clean_on_the_Moon">just yet</a> because water is scarce up there. But down here on Earth, washing clothes is a large part of our lives. <a href="https://bigee.net/media/filer_public/2013/03/28/bigee_domestic_washing_machines_worldwide_potential_20130328.pdf">It’s estimated</a> that a volume of water equivalent to 21,000 Olympic swimming pools is used every day for domestic laundry worldwide. Fibres from our clothes make their way into the environment via the air (during use or in the dryer), water (washing) and soil (lint rubbish in landfill). Most of this fibre loss is invisible – we often only notice our favourite clothing is “disappearing” when it’s too late. How can you ensure your favourite outfit will outlast your wish to wear it? Simple question, complex answer. <h2>Washing machines are not gentle</h2> When you clean the filters in your washing machine and dryer, how often do you stop to think that the lint you’re holding <a href="https://theconversation.com/uk-laundry-releases-microfibres-weighing-the-equivalent-of-1-500-buses-each-year-199712">was, in fact, your clothes</a>? Laundering is harsh on our clothes, and <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0250346">research confirms this</a>. Several factors play a role: the type of washing machine, the washing cycle, detergents, temperature, time, and the type of fabric and yarn construction. There are two types of domestic washing machines: top-loader and front-loader. Mechanical agitation (the way the machine moves the clothes around) is one of the things that helps ease dirt off the fabric. Top-loaders have a vertical, bucket-like basket with a paddle, which sloshes clothes around in a large volume of water. Front-loaders have a horizontal bucket which rotates, exposing the clothes to a smaller volume of water – it takes advantage of gravity, not paddles. Top-loading machines <a href="https://link.springer.com/article/10.1007/s12541-010-0047-7">tend to be more aggressive</a> towards fabrics than front-loaders due to the different mechanical action and larger volumes of water. Washing machine panels also present many choices. Shorter, low-temperature programs <a href="https://clevercare.info/more-eco-temperature-tips">are usually sufficient for everyday stains</a>. Choose longer or <a href="https://iprefer30.eu/animations/UK/wash-brochure-uk.pdf">high-temperature programs</a> only for clothing you have concerns about (healthcare uniforms, washable nappies, etc.). Generally, washing machine programs are carefully selected combinations of water volume, agitation intensity and temperature recommended by the manufacturer. They take into consideration the type of fabric and its level of cleanliness. Select the wrong program and you can say goodbye to your favourite top. For example, high temperatures or harsh agitation may cause some fibres to weaken and break, causing holes in the garment. <h2>Some fabrics lose fibres more easily than others</h2> At a microscopic level, the fabric in our clothes is made of yarns – individual fibres twisted together. The nature and length of the fibres, the way they are twisted and the way the yarns form the fabric can determine how many fibres will be lost during a wash. In general, if you want to lose fewer fibres, you should wash less frequently, but some fabrics are affected more than others. Open fabric structures (knits) with loose yarns <a href="https://www.nature.com/articles/s41598-021-98836-6">can lose more fibres</a> than tighter ones. Some sports clothing, like running shirts, are made of continuous filament yarn. These fibres are less likely to come loose in the wash. Cotton fibres are only a few centimetres long. Twisted tightly together into a yarn, they can still escape. Wool fibres are also short, but have an additional feature: scales, which make wool clothes much more delicate. Wool fibres can come loose like cotton ones, but also tangle with each other during the wash due to their scales. This last aspect is what causes wool garments to shrink when <a href="https://journals.sagepub.com/doi/abs/10.1177/004051756403400303">exposed to heat</a> and agitation. <h2>Go easy on the chemicals</h2> The type of detergent and other products you use also makes a difference. Detergents contain a soap component, enzymes to make stains easier to remove at low temperature, and fragrances. Some contain harsher compounds, such as bleaching or whitening agents. Modern detergents are very effective at <a href="https://www.choice.com.au/home-and-living/laundry-and-cleaning/laundry-detergents/review-and-compare/laundry-detergents">removing stains such as food</a>, and you don’t need to use much. An incorrect choice of wash cycles, laundry detergent and bleaching additives could cause disaster. Certain products, like bleach, can <a href="https://site.extension.uga.edu/textiles/textile-basics/understand-your-fibers/">damage some fibres like wool and silk</a>. Meanwhile, research on <a href="https://www.sciencedirect.com/science/article/pii/S0269749120366872?via%3Dihub">fabric softeners and other treatments</a> <a href="https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0233332&type=printable">continues</a> – there’s no one-size-fits-all answer about their potential impact on our clothes. <h2>Just skip laundry day</h2> So, how to ensure your clothes last longer? The main tip is to wash them less often. When it’s time for a wash, carefully read and follow the care labels. In the future, our washing machines will <a href="https://www.teknoscienze.com/tks_article/trends-in-laundry-by-2030/">recognise fabrics and select the wash cycle</a>. For now, that’s our responsibility. And the next time you throw your shirt into the dirty laundry basket, stop. Think of the astronauts orbiting above Earth and ask yourself: if they can go without clean laundry for a few days, maybe I can too? (Although we don’t recommend just burning your dirty undies, either.)<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/224064/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <figure><iframe src="https://www.youtube.com/embed/C1j6KLP492E?wmode=transparent&start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <a href="https://theconversation.com/profiles/alessandra-sutti-1513345">Alessandra Sutti</a>, Associate Professor, Institute for Frontier Materials, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a>; <a href="https://theconversation.com/profiles/amol-patil-1513347">Amol Patil</a>, Research Engineer, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a>, and <a href="https://theconversation.com/profiles/maryam-naebe-1513346">Maryam Naebe</a>, Associate professor, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a> 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/what-washing-machine-settings-can-i-use-to-make-my-clothes-last-longer-224064">original article</a>.

Home & Garden

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

10 rules every good house guest follows

You've been invited to stay in somebody else's house. You're instantly told "make yourself at home!" But you can't really, can you? Here's the unsaid rules of being a houseguest you just can't break. 1. Not arriving on time Always provide your itinerary to your host before you arrive. If your flight or train is delayed, give them real-time updates. Google Map your journey in advance so you know exactly how to get to their house. It's awfully inconvenient as a host to be waiting to give a guest keys, but have them arrive two hours late because of an excuse like "I got lost". 2. Turning up empty handed You don't need to bring much, but when staying at someone's house you need to arrive with a token of appreciation. A bottle of wine, some chocolates, or a kitsch little jar of jam you made. Turning up empty handed is expected by the host, but all good houseguests know a small gift is the right way to kick things off. 3. Keeping your shoes on Perhaps you live in a shoes-on house when you're at home, but unless told so, you should never keep them on when staying at another's. Especially if you only see your host walking around bare foot, or in socks/slippers. Houseguests bring in extra dirt, fluff, and marks – the most conscious you can be of that, the better. 4. Turning down food When you're staying in somebody else's home, you must eat what you are served. Hosts go to a lot of effort to make you feel welcome and cooking for you is a big part of that. If you have any dietary requirements, say so before you arrive and offer to bring a bag of shopping. Your host will probably refuse, but you've laid the groundwork for happy mealtimes for the duration of your stay. 5. Not cleaning up Picture this: you're staying with a friend, and they're at work all day while you mooch around their house. The dishwasher is full but you don't know where anything goes in the cupboards. You pile your dirties in the sink, and your friend comes home to find them. Cue instant aggression that will forever remain unspoken. Avoid being a bad guest by cleaning up when you're a houseguest – even if you put things back in the wrong place. 6. Not asking to use laundry facilities One of the most difficult things about travelling is getting your laundry done. When a washing machine and dryer become available, it's natural to want to jump on them. But you must ask your host first. They will always say yes – everybody understands what it's like to have to wear inside-out underwear when you've had no laundry facilities for a week – but it's just polite to ask. 7. Asking your host to quiet down When staying in somebody else's house, there's a high chance of noises you're not used to. That could mean your host watching TV at midnight when you've got to be up early, or them talking loudly on the phone at 6AM while you're asleep. But you can't say anything about it. If you are noise-sensitive, always bring quality earplugs. 8. Bringing lovers home We get it, maybe you're in an exciting new city and the options for a little sexy time are pinging at your phone every few minutes. But you cannot, under any circumstances, invite a new lover over to somebody's house when you're staying there. Even if you have their house to yourself, it's just a breach of respect. If you want to hook up, go to their place. 9. Leaving the bed unmade Hosts generally accept there'll be some clean-up after you're gone. But don't leave the guest bed unmade, or your dirty sheets on it. Strip them off on your final morning, and either fold them nicely, or put them in the washing machine (this is one situation where you don't need their permission to use their laundry). Remake the bed with or without clean sheets if possible. 10. Not saying thank you It doesn't have to be a formal written letter (though that would be nice, wouldn't it). But you must thank your hosts after you leave with a note, an e-mail, or even a text. It's something so easy to forget to do once you're gone, but ensures the host feels their hospitality has been appreciated. And if you've not broken any of the other rules, you'll definitely get invited back. Image credits: Shutterstock Written by Lee Suckling. First appeared on <a href="http://www.stuff.co.nz/" target="_blank" rel="noopener">Stuff.co.nz</a>.

Home & Garden

"World's biggest" amber nugget worth over $1 million used as doorstop for decades

An elderly woman in Romania has unknowingly used one of the largest known amber nuggets in the world - worth over €1 million ($1.6 million) - as her doorstop for decades. The woman found the stone in the bed of a stream in Colti, a village in the southeast Romania, and used it as her doorstop for years without realising its value. Members of her family also reported that thieves had once broken into her home, but only stole a few pieces of gold jewelry, missing the seemingly insignificant rock. “In their frantic search for valuables, they overlooked the real treasure that was there before their eyes,” they said. It wasn't until after the woman died in 1991 that a relative who inherited her home suspected the doorstop might be more than meets the eye - and he was right. When he sold the amber to the Romanian state, experts at the Museum of History in Krakow, Poland appraised the rock and found that the amber is likely between around 38 and 70 million years old. “Its discovery represents a great significance both at a scientific level and at a museum level,” Daniel Costache, director of the Provincial Museum of Buzau, told local news outlet El Pais. The expert also claimed that the amber is one of the largest pieces in the world and the largest of its kind weighing a hefty 3.5-kilograms. It has now been classified as a national treasure of Romania, and can be found in the Provincial Museum of Buzau, where it has been since 2022. Romania is one of the countries with significant deposits of amber, with Buzau County being one of the areas where you can find these beautiful stones in abundance. The protected area also contains the old Stramba amber mine, which was very productive during the first half of the 21st century, before it was shut down by the communist regime as it was considered unprofitable. Image: Buzău County Museum

Home & Garden

No, your aches and pains don’t get worse in the cold. So why do we think they do?

<a href="https://theconversation.com/profiles/manuela-ferreira-161420">Manuela Ferreira</a>, <a href="https://theconversation.com/institutions/george-institute-for-global-health-874">George Institute for Global Health</a> and <a href="https://theconversation.com/profiles/leticia-deveza-1550633">Leticia Deveza</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a> It’s cold and wet outside. As you get out of bed, you can feel it in your bones. Your right knee is flaring up again. That’ll make it harder for you to walk the dog or go to the gym. You think it must be because of the weather. It’s a common idea, but a myth. When we looked at the evidence, <a href="https://www.sciencedirect.com/science/article/pii/S0049017224000337">we found</a> no direct link between most common aches and pains and the weather. In the first study of its kind, we found no direct link between the temperature or humidity with most joint or muscle aches and pains. So why are so many of us convinced the weather’s to blame? Here’s what we think is really going on. <h2>Weather can be linked to your health</h2> The weather is often associated with the risk of new and ongoing health conditions. For example, cold temperatures <a href="https://pubmed.ncbi.nlm.nih.gov/27021573/">may worsen</a> asthma symptoms. Hot temperatures <a href="https://www.thelancet.com/journals/lanplh/article/PIIS2542-5196(22)00117-6/fulltext">increase the risk</a> of heart problems, such as arrhythmia (irregular heartbeat), cardiac arrest and coronary heart disease. Many people are also convinced the weather is linked to their aches and pains. For example, <a href="https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1479-8077.2004.00099.x?casa_token=jvpSbA4szqoAAAAA%3ATyHyGaqXmfevWyuJe6LW_3Pap3IPHC8HSMTl3RN63mFzNO0X7ozQjBb6Bi3yVFuPjqkrf-WlB-J5A1q1">two in every three</a> people with knee, hip or hand osteoarthritis <a href="https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-15-66">say</a> cold temperatures trigger their symptoms. Musculoskeletal conditions affect more than <a href="https://www.aihw.gov.au/reports/chronic-musculoskeletal-conditions/musculoskeletal-conditions-comorbidity-australia/summary">seven million Australians</a>. So we set out to find out whether weather is really the culprit behind winter flare-ups. <h2>What we did</h2> Very few studies have been specifically and appropriately designed to look for any direct link between weather changes and joint or muscle pain. And ours is the first to evaluate data from these particular studies. We looked at data from more than 15,000 people from around the world. Together, these people reported more than 28,000 episodes of pain, mostly back pain, knee or hip osteoarthritis. People with rheumatoid arthritis and gout were also included. We then compared the frequency of those pain reports between different types of weather: hot or cold, humid or dry, rainy, windy, as well as some combinations (for example, hot and humid versus cold and dry). <h2>What we found</h2> We found changes in air temperature, humidity, air pressure and rainfall do not increase the risk of knee, hip or lower back pain symptoms and are not associated with people seeking care for a new episode of arthritis. The results of this study suggest we do not experience joint or muscle pain flare-ups as a result of changes in the weather, and a cold day will not increase our risk of having knee or back pain. In order words, there is no direct link between the weather and back, knee or hip pain, nor will it give you arthritis. It is important to note, though, that very cold air temperatures (under 10°C) were rarely studied so we cannot make conclusions about worsening symptoms in more extreme changes in the weather. The only exception to our findings was for gout, an inflammatory type of arthritis that can come and go. Here, pain increased in warmer, dry conditions. Gout has a very different underlying biological mechanism to back pain or knee and hip osteoarthritis, which may explain our results. The combination of warm and dry weather may lead to increased dehydration and consequently increased concentration of uric acid in the blood, and deposition of uric acid crystals in the joint in people with gout, resulting in a flare-up. <h2>Why do people blame the weather?</h2> The weather can influence other factors and behaviours that consequently shape how we perceive and manage pain. For example, some people may change their physical activity routine during winter, choosing the couch over the gym. And we know <a href="https://pubmed.ncbi.nlm.nih.gov/28700451/">prolonged sitting</a>, for instance, is directly linked to worse back pain. Others may change their sleep routine or sleep less well when it is either too cold or too warm. Once again, a bad night’s sleep can trigger your <a href="https://link.springer.com/article/10.1007/s00586-021-06730-6">back</a> and <a href="https://www.sciencedirect.com/science/article/pii/S1063458421007020">knee</a> pain. Likewise, changes in mood, often experienced in cold weather, trigger increases in both <a href="https://link.springer.com/article/10.1007/s00586-021-06730-6">back</a> and <a href="https://www.sciencedirect.com/science/article/pii/S1063458421007020">knee</a> pain. So these changes in behaviour over winter may contribute to more aches and pains, and not the weather itself. Believing our pain will feel worse in winter (even if this is not the case) may also make us feel worse in winter. This is known as the <a href="https://link.springer.com/article/10.1186/s12891-018-1943-8">nocebo effect</a>. <h2>What to do about winter aches and pains?</h2> It’s best to focus on risk factors for pain you can control and modify, rather than ones you can’t (such as the weather). You can: <ul> <li> become more physically active. This winter, and throughout the year, aim to walk more, or talk to your health-care provider about gentle exercises you can safely do at home, with a physiotherapist, personal trainer or at the pool </li> <li> lose weight if obese or overweight, as this is linked to <a href="https://jamanetwork.com/journals/jama/article-abstract/2799405">lower levels</a> of joint pain and better physical function </li> <li> keep your body warm in winter if you feel some muscle tension in uncomfortably cold conditions. Also ensure your bedroom is nice and warm as we tend to sleep <a href="https://www.sciencedirect.com/science/article/pii/S0033350623003359">less well</a> in cold rooms </li> <li> maintain a healthy diet and <a href="https://www.thelancet.com/journals/lanrhe/article/PIIS2665-9913(23)00098-X/fulltext">avoid smoking</a> or drinking high levels of alcohol. These are among <a href="https://ard.bmj.com/content/annrheumdis/82/1/48.full.pdf">key lifestyle recommendations</a> to better manage many types of arthritis and musculoskeletal conditions. For people with back pain, for example, a healthy lifestyle is linked with <a href="https://pubmed.ncbi.nlm.nih.gov/36208321/">higher levels</a> of physical function.<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/235117/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> </li> </ul> <a href="https://theconversation.com/profiles/manuela-ferreira-161420">Manuela Ferreira</a>, Professor of Musculoskeletal Health, Head of Musculoskeletal Program, <a href="https://theconversation.com/institutions/george-institute-for-global-health-874">George Institute for Global Health</a> and <a href="https://theconversation.com/profiles/leticia-deveza-1550633">Leticia Deveza</a>, Rheumatologist and Research Fellow, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</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/no-your-aches-and-pains-dont-get-worse-in-the-cold-so-why-do-we-think-they-do-235117">original article</a>.

Body

Antarctic heat, wild Australian winter: what’s happening to the weather and what it means for the rest of the year

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/martin-jucker-379172">Martin Jucker</a>, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> Australia’s south and east have seen <a href="https://theconversation.com/southern-australia-is-freezing-how-can-it-be-so-cold-in-a-warming-climate-233977">freezing temperatures</a> and <a href="https://www.theguardian.com/australia-news/article/2024/jul/29/australia-winter-weather-forecast-east-coast-colder-records">wild weather</a> this winter. At the same time, the continent as a whole – and the globe – have <a href="https://www.abc.net.au/news/2024-08-03/australia-suffers-cold-winter-weather-despite-mild-forecast/104176284">continued to warm</a>. What’s going on? As ever, it’s hard to pinpoint a single cause for weather events. But a key player is likely an event unfolding high above Antarctica, which itself may have been triggered by a heatwave at surface level on the frozen continent. Here’s what’s happening – and what it might mean for the rest of this year’s weather. <h2>When the stratosphere heats up</h2> Out story begins in the cold air over Antarctica. July temperatures in the stratosphere, the layer of air stretching between altitudes of around 10 and 50 kilometres, are typically around –80°C. The winds are also very strong, averaging about 300 kilometres per hour in winter. These cold, fast winds loop around above the pole in what is called the <a href="https://sites.krieger.jhu.edu/waugh/research/polarvortex">stratospheric polar vortex</a>. Occasionally, persistent high air pressure in the lower atmosphere can influence large-scale waves that extend around the globe and up into the stratosphere. There they cause the strong winds to slow down, and the air high above the pole to become much warmer than normal. In extreme situations the stratospheric winds can completely break down, in what is called a “sudden stratospheric warming” event. These events occur every few years in the northern hemisphere, but only one has ever been observed in the south, in 2002 (though another <a href="https://theconversation.com/the-air-above-antarctica-is-suddenly-getting-warmer-heres-what-it-means-for-australia-123080">almost happened in 2019</a>). <h2>Pushing polar weather our way</h2> Once the polar vortex is disturbed, it can in turn influence the weather at the surface by steering weather systems from the Southern Ocean towards the Equator. However, this is a slow process. The impact at the surface may not be felt until <a href="https://doi.org/10.1175/JCLI-D-22-0425.1">a few weeks or even months</a> after the initial weakening of the stratospheric polar vortex. Once it begins, the stratospheric influence can prevail for more weeks or months, and helps meteorologists make <a href="https://doi.org/10.5194/acp-22-2601-2022">long-range weather forecasts</a>. In climate science terms, the weak stratospheric winds put an atmospheric system called the <a href="http://www.bom.gov.au/climate/sam/">Southern Annular Mode</a> into a negative phase. The main effect of this on surface weather is to bring westerly winds further north. In winter, this means polar air outbreaks can reach places like Sydney more easily. As a result, we see more <a href="https://doi.org/10.1175/JCLI4134.1">rain over much of southern Australia</a>, and snowfall in alpine regions. In spring and summer it means westerly winds blow over the continent before reaching the east coast, bringing warm and dry air to southeastern Australia. The exact impact of a weaker polar vortex depends on how much and for how long the weather systems are being pushed further northward. It will also depend on other weather influencers such as El Niño and the Indian Ocean Dipole. <h1>This winter’s weirdness</h1> Unpicking exactly why any weather event occurs is tricky at the moment, because global weather has been absolutely crazy over the past 12 months or so. Global temperatures are <a href="https://theconversation.com/we-just-blew-past-1-5-degrees-game-over-on-climate-not-yet-213364">much higher than usual</a>, which is making unusual weather very common. But there are indications that the stratosphere is having some influence on our weather this winter. The stratospheric polar vortex started to warm in mid-July, and is about 20°C warmer than the long-term average. At the time of writing, the winds slowed down to about 230 kilometres per hour, 70 kilometres per hour slower than average. These numbers mean that, technically, the event does not qualify as a sudden stratospheric warming. However, further warming may still occur. If we look at how southern hemisphere winds have evolved in the past few weeks, we see a pattern which looks like what we would expect from a sudden stratospheric warming. First, we see warming in the stratosphere which is <a href="https://doi.org/10.1029/2021GL095270">at first accompanied by a poleward shift of weather systems</a>. The stratosphere’s influence then propagates downward and seems to <a href="https://doi.org/10.1175/JCLI-D-22-0425.1">induce many weeks</a> of weather systems shifted towards the equator. This coincides with the period of cold and rainy weather along Australia’s east coast in late July and the beginning of August. Forecasts suggest the Southern Annular Mode will be a long way from normal conditions in the first half of August – four standard deviations below average, which is extremely rare. <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=300&fit=crop&dpr=1 600w, https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=300&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=300&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=377&fit=crop&dpr=1 754w, https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=377&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/611211/original/file-20240804-19-sp862a.png?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=377&fit=crop&dpr=3 2262w" alt="Diagram showing atmospheric warming and winds" /></a><figcaption>How initial warming high in the stratosphere ends up changing winds near the surface and pushing polar weather further north. <a class="source" href="https://stratobserve.com">Z.D. Lawrence / StratObserve / Annotated by Martin Jucker</a></figcaption></figure> <h1>A surface disturbance</h1> The main reason for the polar vortex to slow down is disturbances from the surface. Weather over the Amundsen Sea near Antarctica in the South Pacific is <a href="https://doi.org/10.1175/JCLI-D-22-0425.1">an important source</a> of these disturbances. This year, we have seen disturbances of this sort. There have been <a href="https://www.theguardian.com/world/article/2024/aug/01/antarctic-temperatures-rise-10c-above-average-in-near-record-heatwave">near-record surface temperatures around Antarctica</a>. These disturbances may be due to the globally high ocean temperatures, or even lingering effects of the <a href="https://doi.org/10.1175/JCLI-D-23-0437.1">eruption of the Hunga Tonga volcano in 2022</a>. But more research will be required to confirm the causes. <h1>What should we expect for the rest of the year?</h1> There are two pathways until the end of the year. One is that the stratospheric winds and temperatures recover to their usual values and no longer influence surface weather. This is what the forecasts from <a href="https://ozonewatch.gsfc.nasa.gov">Ozone Watch</a> seem to suggest. Another is that the stratosphere keeps warming and the winds keep being slower all the way into summer. In this scenario, we would expect a persistent negative Southern Annular Mode, which would mean a spring and potentially even summer with warmer and drier than usual weather over southeastern Australia, and a small ozone hole. The seasonal forecasting models from the European Centre for Medium Range Weather Forecasts <a href="https://x.com/drahbutler/status/1819142206348759170?s=46&t=sayfGwpo3_s310BwYpcdcQ">seem to favour this second scenario</a>. <a href="https://theconversation.com/profiles/martin-jucker-379172">Martin Jucker</a>, Senior Lecturer in Atmospheric Science, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</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/antarctic-heat-wild-australian-winter-whats-happening-to-the-weather-and-what-it-means-for-the-rest-of-the-year-236067">original article</a>. </div>

Travel Trouble

Snug but unsafe: your heater may be harming your health. What are your safest choices?

<a href="https://theconversation.com/profiles/christine-cowie-191638">Christine Cowie</a>, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> and <a href="https://theconversation.com/profiles/bill-dodd-1280161">Bill Dodd</a>, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a> We now have a dizzying array of heating technologies to consider, besides the fire that warmed our ancestors. Salespeople will highlight any number of features and minor conveniences. You will be made aware of limited-offer discounts, product warranties, trends in certain Nordic countries, or their low cost (at least in the short-term). What you are less likely to read on the box is, well, the stuff that really matters: the long-term effects on your health and the health of your family, your neighbours and the environment. Yes, a heater should keep you warm affordably. After all, a warm home is vital for your health. But would you run a heater that you knew was increasing the likelihood of your child developing asthma, your partner developing lung cancer, and your neighbour or your grandparent suffering a stroke or heart attack? Many <a href="https://doi.org/10.1016/j.envint.2019.105429">peer-reviewed studies</a> have found domestic heating to be a major source of air pollution and of ill health in Australia. So which heaters are high-risk and which are low-risk? Let’s consider, firstly, the most dangerous heaters. <h2>Extreme-risk heaters</h2> Two rules reduce the risks: <ol> <li> never burn anything (wood, gas or other fuel) in your home without adequate ventilation such as a chimney, exhaust or flue </li> <li> never use an outdoor appliance (heater, cooker, barbecue) inside. </li> </ol> Concerningly, a 2022 <a href="https://asthma.org.au/wp-content/uploads/2022/11/AA2022_Housing-Survey-Report_full_v4.pdf">Asthma Australia survey</a> found 7% of Australians used an unflued gas heater. When gas or other fuel is burnt indoors it releases a range of <a href="https://search.informit.org/doi/abs/10.3316/informit.786585213635569">particles and toxic gases</a>. Most dangerous of all is <a href="https://www.dcceew.gov.au/environment/protection/npi/substances/fact-sheets/carbon-monoxide-0">carbon monoxide</a> (CO). This colourless, odourless gas can build up in unventilated homes, resulting in serious poisoning and death. A recent <a href="https://www.abc.net.au/news/2024-06-29/sydney-family-use-bbq-as-indoor-heater-inhale-carbon-monoxide/104039702">case of carbon monoxide intoxication</a> left three people unconscious in a Sydney home after an outdoor barbecue was used inside as a heater. Outdoor heaters, cookers and barbecues are especially potent sources of carbon monoxide and should never be brought inside. If you have a gas appliance in your home, even if it is ventilated, install a <a href="https://www.energysafe.vic.gov.au/industry-guidance/gas/gas-information-sheets/gis-36-carbon-monoxide-alarms-domestic-use">carbon monoxide alarm</a> for as little as $30. <h2>High-risk heaters</h2> <a href="https://www.sciencedirect.com/science/article/pii/S0048969724012087">The evidence</a> is now very clear: wood heater smoke is a potent source of air pollution and significant cause of ill-health in Australia. The more often you burn, the greater the risk. One <a href="https://doi.org/10.1016/j.envint.2023.108128">large population study</a> found even infrequent wood heater use (30 days or more each year) increases the risk of lung cancer by 68%. Wood heaters spill smoke into the home when refuelling. They also suck smoke from outside back into the home as air is drawn up the chimney. If you can smell your wood heater, it is harming your health and exposing you to a toxic mix of particles and gases. For the wider community, the cumulative health impacts of wood heaters are significant. Less than <a href="https://www.abs.gov.au/ausstats/abs@.nsf/Previousproducts/4602.0.55.001Main%20Features5Mar%202011?opendocument&tabname=Summary&prodno=4602.0.55.001&issue=Mar%202011&num=&view=">10% of Australian households</a> use a wood heater. Yet they are the largest source of particulate air pollution in most Australian cities and towns, including <a href="https://www.environment.nsw.gov.au/-/media/OEH/Corporate-Site/Documents/Air/sydney-air-quality-study-stage-2-program-report-220644.pdf">Sydney</a>, <a href="http://www.doi.org/10.1016/j.scitotenv.2024.171069">Melbourne</a>, <a href="https://onlinelibrary.wiley.com/doi/full/10.5694/mja2.52176">Canberra</a>, <a href="http://www.doi.org/10.1016/j.scitotenv.2024.171069">Adelaide</a> and <a href="http://www.doi.org/10.3390/ijerph17093264">Hobart</a>. Even in temperate Sydney, wood heaters emit <a href="https://www.environment.nsw.gov.au/-/media/OEH/Corporate-Site/Documents/Air/sydney-air-quality-study-stage-2-program-report-220644.pdf">more of this pollution</a> than all the cars, trucks, boats and buses combined, and more than coal-fired power stations and industry. <a href="https://safeair.org.au/">Centre for Safe Air</a> researchers <a href="https://doi.org/10.1016/j.scitotenv.2024.171069">estimate</a> wood heaters cause between 558 and 1,555 excess deaths a year in Australia. That’s roughly equivalent to the <a href="https://www.bitre.gov.au/publications/ongoing/road_deaths_australia_monthly_bulletins">annual road toll</a>. Fine particles (2.5 microns or less in diameter – also known as PM2.5) are a major component of wood smoke. PM2.5 increases <a href="https://www.epa.gov/air-research/air-pollution-and-cardiovascular-disease-basics">rates of heart disease and stroke</a>, <a href="https://doi.org/10.3978%2Fj.issn.2072-1439.2016.01.19">lung disease</a>, <a href="https://doi.org/10.1016/j.scitotenv.2018.11.218">dementia and other neurological conditions</a> and <a href="https://asthma.org.au/about-us/advocacy/air-quality">asthma attacks</a>. Risks of <a href="https://doi.org/10.1371/journal.pmed.1003718">adverse pregnancy outcomes</a> and <a href="https://www.eea.europa.eu/publications/air-pollution-and-childrens-health">poorer learning outcomes in children</a> are also increased. <h2>Low-risk heaters</h2> Evidence suggests there is no “safe” level of air pollution, with health effects <a href="https://doi.org/10.1016/j.envint.2019.02.044">seen at very low levels</a>. Even ducted gas heating, where most of the toxins are ventilated, <a href="https://search.informit.org/doi/abs/10.3316/informit.786585213635569">can expose residents to low levels</a> of PM2.5, nitrogen dioxide (NO2), carbon monoxide and formaldehyde. Over time, this can have a range of <a href="https://safeair.org.au/the-health-impacts-of-gas-use-extraction/#gf_1">health impacts</a>, including worsening asthma and respiratory symptoms. Burning gas for heating also adds to greenhouse gas emissions. As Australia transitions to a zero-carbon society, some states and territories are phasing out installation of new wood heaters, such as <a href="https://www.abc.net.au/news/2023-08-24/canberra-to-phase-out-wood-heaters-by-2045/102769162">in the ACT</a>, and gas connections, such as <a href="https://www.planning.vic.gov.au/guides-and-resources/strategies-and-initiatives/victorias-gas-substitution-roadmap">in Victoria</a>. Subsidies to help people replace unhealthy heaters are excellent investments in the environment, public health and health equity. <h2>Healthy heaters</h2> Ultimately, heaters that do not rely on burning fuel inside the home are the safest, and often more affordable, heating option. A <a href="https://www.abc.net.au/news/2023-07-17/cleaning-filters-in-reverse-cycle-air-conditioner-to-save/102594652">well-maintained</a> reverse-cycle air conditioner, sometimes called a heat pump, actually cleans the air inside your home. These air conditioners have the additional benefit of cooling your home in summer. As heatwaves become more severe and frequent, efficient cooling is <a href="https://www.sciencedirect.com/science/article/pii/S0378778823004152">increasingly important for health</a>. As for affordability, an efficient reverse-cycle air conditioner can be up to <a href="https://www.climatechoices.act.gov.au/__data/assets/pdf_file/0005/1862663/Sustainable-Household-Scheme-A-guide-to-reverse-cycle-systems.pdf">seven times as efficient</a> as a gas wall heater in the energy it uses for a given amount of heat. There are many other <a href="https://www.choice.com.au/home-and-living/heating/electric-heaters/articles/which-electric-heater-type-is-best">electric heating technologies</a> – such as fan heaters, oil column heaters, panel heaters, or infrared heaters – that do not release toxins into the home. Heater manufacturers are often reluctant to talk about the health impacts of their products, and regulators are slow to catch up with the science. By thinking about heating in terms of health, you can make your home safer for yourself and the people around you. After all, there’s nothing cosier than a healthy home.<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/235102/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/christine-cowie-191638">Christine Cowie</a>, Senior Research Fellow, Centre for Air Quality and Health Research and Evaluation, Woolcock Institute of Medical Research, University of Sydney; Senior Research Fellow, South West Sydney Clinical School, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> and <a href="https://theconversation.com/profiles/bill-dodd-1280161">Bill Dodd</a>, Knowledge Broker, Centre for Safe Air (NHMRC CRE), and Adjunct Researcher, Media School, <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/snug-but-unsafe-your-heater-may-be-harming-your-health-what-are-your-safest-choices-235102">original article</a>.

Home & Garden

Doctor shares her holy grail tips for overcoming eye sensitivity

As the chill of winter sets in, many people find that their eyes become more sensitive and prone to dryness. This can be particularly challenging for those who already suffer from dry eye syndrome. Dr. Jacqueline Beltz is a leading Australian Ophthalmologist and the founder of <a href="https://www.okkiyo.com" target="_blank" rel="noopener">OKKIYO</a>, a beauty brand that makes PRIORITEYES mascara for people with sensitive eyes. Dr Beltz has shared her insights into dry eye syndrome and how winter can exacerbate symptoms, also sharing her top tips for managing eye sensitivity during the colder months. Understanding Dry Eye Syndrome The surface of the eye is covered by a delicate layer of tears, essential for comfort, vision, protection, and nutrition. The tear film comprises two main layers: an outer lipid (oily) layer and an inner aqueous (watery) layer. The lipid layer, produced by oil glands in the eyelids, prevents tears from evaporating too quickly, while the aqueous layer, consisting of water, electrolytes, and proteins, spreads tears evenly across the eye and helps them adhere to the surface. When the balance of tear production, evaporation, absorption, and drainage is disrupted, it can lead to dry eye syndrome. Symptoms may include redness, irritation, a gritty sensation, tired eyes, itching, excessive watering, and fluctuating vision. In severe cases, dry eye can be painful and significantly impact daily life. How common is dry eye syndrome? Dry eye syndrome is a widespread issue, particularly among older adults. According to the Blue Mountains Eye Study, 57% of adults over the age of 50 experience some degree of dry eye. This condition is notably more prevalent in women, with higher rates observed compared to their male counterparts. The increased prevalence in women is often attributed to hormonal changes, particularly during and after menopause. A more recent study, Optometry Australia’s 2022 Vision index found that over 85% of Australians are estimated to have experienced dry eyes at some point in their lives. Of those affected, 55% say they only developed the condition following the beginning of the pandemic in 2020. They reported that almost 1 in 5 (18%) of people experience dry eye symptoms frequently. These statistics highlight the importance of understanding and managing dry eye, especially as we age. DEWS II Study and Treatment Approaches The DEWS II (Dry Eye Workshop II) study provides a comprehensive framework for understanding and treating dry eye syndrome. According to the study, dry eye is a multifactorial disease characterised by a loss of homeostasis (or balance) in the tear film, accompanied by eye symptoms. Factors such as tear film instability, hyperosmolarity (increased saltiness), inflammation, and neurosensory (altered feelings or sensations) abnormalities play significant roles. There are two primary types of dry eye: aqueous deficient and evaporative. Most individuals have a combination of both. Aqueous deficient dry eye occurs when there is insufficient production of the watery layer of tears, often due to aging, hormonal changes, or certain medications. Evaporative dry eye is typically caused by environmental factors or conditions affecting the lipid layer, such as meibomian gland dysfunction (MGD). Winter's Impact on Dry Eyes Winter poses unique challenges for dry eye sufferers. Cold, dry air, indoor heating, and wind can all exacerbate symptoms. Here's how to combat these winter-specific issues: 1. Humidify Your Environment Indoor heating reduces humidity levels, leading to increased tear evaporation. Consider using a humidifier to maintain moisture in the air, especially in bedrooms and living spaces. This helps keep your eyes hydrated. 2. Protect Your Eyes Outdoors Cold winds can strip away the tear film. When outside, wear wraparound sunglasses to shield your eyes from the elements. This not only protects your eyes from the wind but also from UV rays, which can be strong even in winter. 3. Stay Hydrated Dehydration can worsen dry eye symptoms. Drink plenty of water throughout the day to maintain overall hydration, which supports healthy tear production. 4. Optimise Your Diet Certain foods can promote eye health. Omega-3 fatty acids, found in fish like salmon and flaxseeds, have anti-inflammatory properties that can help manage dry eye symptoms. Incorporate these into your diet for added benefits. 5. Use a Warm Compress A warm compress can help improve the function of the meibomian glands, which produce the oily layer of the tear film. This is particularly helpful for those with meibomian gland dysfunction, or MGD. Gently apply a warm, damp cloth to your closed eyelids for 10-15 minutes, followed by a gentle massage of the eyelids to encourage oil secretion. It is important to avoid rubbing or compressing the eyeballs. 6. Use Over-the-Counter Lubricant Eye Drops Artificial tears can provide temporary relief by supplementing the natural tear film. Choose preservative-free options to avoid further irritation, and use them frequently. 7. Remember to have regular eye checks In Australia, Optometrists provide our primary eye health check ups. Dr Beltz recommends adults over the age of 40 see their optometrist once a year, but if you’re struggling with symptoms of dry eye in winter, an extra check up might help and your optometrist will be able to help you to come up with an individualised treatment plan. 8. Invest in Quality Eye Products For those who wear makeup, using products designed for sensitive eyes is crucial. <a href="https://www.okkiyo.com/products/protect-and-preserve-mascara" target="_blank" rel="noopener">PRIORITEYES</a> mascara by OKKIYO has been specifically formulated to be gentle on sensitive eyes, avoiding common irritants while providing excellent performance. Managing Dry Eye in Winter: A Recap Winter can be tough on our eyes, but with the right strategies, you can manage dry eye symptoms effectively. Maintain a humid environment, protect your eyes from cold winds, stay hydrated, and incorporate eye-healthy foods into your diet. Regularly use warm compresses and opt for gentle, high-quality eye products like PRIORITEYES mascara. Dry eye syndrome may be a common condition, but it doesn't have to dominate your life, especially during the harsh winter months. With these tips, you can keep your eyes comfortable and healthy all season long. For personalised advice and treatment, always consult with your eye care professional. Stay warm, stay hydrated and take care of your eyes this winter! Image credits: Shutterstock

Body

New York City mocked for only just discovering wheelie bins

New York City has been trolled online after discovering wheelie bins for the first time. In order to tackle the "trash revolution", the mayor of NYC Eric Adams announced that wheelie bins will be introduced city wide, instead of the current system which is just leaving rubbish bags on the street. Despite the introduction of wheelie bins being a great solution for the city's trash and rodent problem, many were shocked to learn that the receptacles don't already exist there. Introducing the roll out, Mayor Adams began his press conference rolling in a bin and proudly demonstrating how to use it before celebrating with colleagues. He said “many people thought it was impossible” that these wheelie bins were going to be part of the city’s “trash revolution”. “We all have one unified dislike, and those are those pesky New York City rats,” Mr Adams said. “They’re getting more and more bold. They no longer run from you. They just hang out and just do what they want. We want to make sure we change that in a real way.” NYC department of sanitation commissioner Jessica Tisch described the official NYC bin as a “beautiful, rat-fighting piece of engineering” to conquer the estimated three million rats that dominate the streets. The wheelie bin announcement, which was intended to impress New Yorkers, has also gone global – with Europeans and Australians baffled by concept of wheelie bins being new. “Oh my word! Are they seriously showing their constituents how to use a trash can?” wrote one person. “Huh, they don’t have wheelie bins? What century do they live in?” said a second. “How the hell is this revolutionary??” agreed another. “So they finally figured out putting your trash in piles on the sidewalk is not a good idea,” mocked someone else. Image credits: X (Twitter)

Home & Garden

Plastic Free July is a waste of time if the onus is only on consumers

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/bhavna-middha-1061611">Bhavna Middha</a>, <a href="https://theconversation.com/institutions/rmit-university-1063">RMIT University</a> and <a href="https://theconversation.com/profiles/ralph-horne-160543">Ralph Horne</a>, <a href="https://theconversation.com/institutions/rmit-university-1063">RMIT University</a> Every year, the <a href="https://www.plasticfreejuly.org/">Plastic Free July</a> campaign asks us to refuse single-use plastic. The idea is that making a small change in our daily lives will collectively make a big difference. And hopefully, better behaviour will stick and become a habit. The intent is good, but consumers shouldn’t have to bear full responsibility for plastic pollution. Individual sacrifices – particularly temporary ones – <a href="https://www.sciencedirect.com/science/article/abs/pii/S0301421509004728">won’t make a significant difference</a>. Governments, manufacturers and retailers need to get serious about tackling this problem. If Plastic Free July put pressure on the supply side of the equation, rather than demand, it could be more successful. Our research spans food packaging including plastics, waste, sustainable consumption and social practices. We know consumer demand is only one part of the picture. Eliminating plastic waste requires broader systemic changes. <h2>The cabbage dilemma</h2> Research shows consumers generally want to do the <a href="https://www.sustainability.vic.gov.au/news/news-articles/the-conversation-on-sustainability-has-changed">right thing by the environment</a> but find it <a href="https://theconversation.com/households-find-low-waste-living-challenging-heres-what-needs-to-change-197022">challenging</a>. Coming out of a supermarket with no packaging is difficult. There are few unpackaged food items and even when there is a choice, the unpackaged item may be more <a href="https://www.smh.com.au/politics/federal/want-your-fruit-and-veg-without-the-plastic-you-ll-have-to-pay-more-20231107-p5eib4.html">expensive</a>. Have you ever been stuck in the supermarket, choosing between the large head of cabbage you know you won’t finish before it goes bad, or the plastic-wrapped half-cabbage you really need? Consumers should not be forced to choose between food waste (another huge problem) or plastic waste. Maybe there’s another way. For example, why not sell cabbages of different sizes? Why do we need to grow such large heads of cabbage anyway? Both plastic consumption and food waste can be addressed by changing how we produce and distribute certain foods. <h2>Governments, manufacturers and retailers must drive change</h2> The onus for reducing plastic consumption and waste should be placed firmly on those who make plastic and profit from selling their products, as well as those who make and sell products wrapped in plastic packaging. Research has shown just <a href="https://www.csiro.au/en/news/All/News/2024/April/Global-study-finds-more-than-half-of-branded-plastic-pollution-linked-to-56-companies?utm_source=pocket_shared">56 companies</a> globally are responsible for more than half of the branded plastic pollution that ends up in the environment. Companies profit from using plastics because it is cheaper to use than changing to alternatives, such as cardboard or compostable materials, or using less packaging. This means companies choosing to avoid using plastics face unfair competition. It’s a tough habit to kick. Industry-led <a href="https://productstewardship.us/what-is-epr/#:%7E:text=Stewardship%20can%20be%20either%20voluntary,product%20stewardship%20required%20by%20law">voluntary schemes</a> are <a href="https://www.insidewaste.com.au/91038-2-product-stewardship-schemes/">limited in terms of both participation and outcomes</a>. Many companies are failing to meet their own <a href="https://www.asyousow.org/report-page/2024-plastic-promises-scorecard">plastic reduction goals</a>. Governments need to step in and force companies to take responsibility for the plastic and packaging they manufacture. In practice, this could involve similar schemes to the container deposit scheme for beverage containers, or returning plastics to stores. Replacing voluntary schemes with mandatory regulations and increased producer responsibility means companies will have to <a href="https://www.insidewaste.com.au/91038-2-product-stewardship-schemes/">invest in long-term changes designed with care</a>. <figure><iframe src="https://www.youtube.com/embed/UnXVU-06ciI?wmode=transparent&start=1" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe><figcaption>What’s Plastic Free July?</figcaption></figure> <h2>Cities are built around plastic</h2> Our previous research has shown plastic performs an essential role in some, <a href="https://rgs-ibg.onlinelibrary.wiley.com/doi/full/10.1111/geoj.12457">constrained circumstances</a>. We found vulnerable householders often rely on plastic to make life manageable, such as using plastics to cover belongings on the balcony, or using plastic cutlery and plates in student apartments with minimal kitchen space. This includes people with accessibility needs, people relying on public transport to shop for groceries, or people who are financially constrained or living in small high-rise <a href="https://theconversation.com/we-cant-keep-putting-apartment-residents-waste-in-the-too-hard-basket-200545">apartments</a>. Unsustainable lifestyles are not so much a choice as a product of poorly planned cities, housing and regulations. It is all very well if you are mobile and well-located, but if you live in a <a href="https://www.abc.net.au/news/2015-07-08/food-deserts-have-serious-consequences-for-residents-experts/6605230">poorly serviced</a> distant suburb and <a href="https://www.unsw.edu.au/newsroom/news/2023/01/are-you-living-in-a-food-desert--these-maps-suggest-it-can-reall">transport groceries or takeaway food</a> or buy things on the go, then plastic is perhaps the only current affordable way to make it work. So campaigns and solutions that do not consider how <a href="https://rgs-ibg.onlinelibrary.wiley.com/doi/full/10.1111/geoj.12457">everyday lives and economy</a> are intertwined with plastics can <a href="https://www.nature.com/articles/s42949-024-00149-w">exclude people and spaces</a> who can’t access the alternatives. For example, there are ways to make <a href="https://onlinelibrary.wiley.com/doi/abs/10.1111/1745-5871.12464">convenience eating more sustainable</a> in education settings. We have shown how <a href="https://onlinelibrary.wiley.com/doi/abs/10.1111/1745-5871.12390">canteens and microwaves</a> in shared spaces can enable people to access affordable food with their friends, as in <a href="https://www.charlesabroad.cz/post/german-university-canteens-why-do-they-beat-the-czech-ones">University Mensa in Germany</a>. Our <a href="https://cur.org.au/project/tackling-food-related-single-use-plastics-in-diverse-consumption-contexts/">new research</a> will explore how single-use food-related plastics and packaging form an integral part of our daily lives, including shopping, work, cooking and storage. Sometimes new policies inadvertently disadvantage certain groups and communities, such as the aged, less mobile, people living in apartments, or low socio-economic groups. Before we roll out new policies and regulations, we need to understand the roles these materials play and the kinds of services and value they provide. We aim to develop a framework to inform policies and strategies that enable a just and inclusive transition to reduced plastic use. <h2>What about after July?</h2> Plastic Free July and similar campaigns are based on idea that making a temporary change will lead to more permanent lifestyle changes. But research shows temporary shifts are <a href="http://www.demand.ac.uk/wp-content/uploads/2016/03/DEMAND2016_Full_paper_42-Shove.pdf">very different</a> to <a href="https://pure.manchester.ac.uk/ws/portalfiles/portal/32468813/FULL_TEXT.PDF">structural, permanent shifts</a> in <a href="https://www.taylorfrancis.com/chapters/edit/10.4324/9781315816494-1/introduction-social-practices-intervention-sustainability-beyond-behaviour-change-yolande-strengers-cecily-maller?context=ubx&refId=d608abad-39f9-4bb2-8754-56e9e2000c5e">practices</a>. Supermarkets will still wrap items in plastic and sell single-use plastic, even if we try to buy less during Plastic Free July. Ultimately, the focus should be on designing effective infrastructure and policy solutions for lasting results, considering how demand for plastic is produced in the first place. Some of these changes will require a shift in community expectations and food culture. Rather than pointing the finger at consumers, let’s get to work on redesigning our cities. We need to rethink how everyday practices, manufacturing and distribution systems are structured to eliminate plastic waste.<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/233436/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/bhavna-middha-1061611">Bhavna Middha</a>, ARC DECRA and Senior Research Fellow, Centre for Urban Research, <a href="https://theconversation.com/institutions/rmit-university-1063">RMIT University</a> and <a href="https://theconversation.com/profiles/ralph-horne-160543">Ralph Horne</a>, Associate Deputy Vice Chancellor, Research & Innovation, College of Design & Social Context, <a href="https://theconversation.com/institutions/rmit-university-1063">RMIT 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/plastic-free-july-is-a-waste-of-time-if-the-onus-is-only-on-consumers-233436">original article</a>. </div>

Home & Garden

The must-visit winter travel destinations

As winter rolls around, many people are looking to flee the confines of their chilly homes and routines in search of sunshine and adventure. Aussies have been already planning their getaways to follow the sun, as <a href="about:blank">Booking.com</a>'s latest search data has revealed the top ten international holiday spots for this year. The results show that while many travellers are heading to tropical destinations this winter, others are searching for a different kind of holiday. 10. Kuta, Bali While Bali has long been a popular tourist destination for Aussies, many chose to head to Indonesia to enjoy the sandy beaches and escape the winter chill. With winter temperatures hovering around 25°C each day, there's no better place to escape the cold. 9. Paris, France In 2024, Paris is on many people’s travel lists ahead of the Olympics in July. With charming restaurants, trendy boutiques, chic cafes, and amazing museums on offer, as well as warm temps, there’s no better time to head to Paris. 8. Ubud, Bali Another Bali region to make the list, Ubud is an inland paradise amongst rice paddies and lush jungle. The food heaven destination is also known for its gorgeous climate, making it a perfect holiday spot. 7. Queenstown, New Zealand For those who don’t want to venture too far from home, Queenstown is an amazing spot for anyone seeking an active holiday. As the only spot on the list which isn't about escaping winter, Queenstown - and New Zealand in general - is often visited by keen skiers and those looking to amplify their winter travels. 6. Canggu, Bali Another Bali spot making the list, Canggu is a beachside area surrounded by terraced rice paddies and known for good surf. Accommodation in the area ranges from beachside villas and gorgeous guesthouses, with something for everyone. 5. Singapore While Singapore has long been a default stopover city for travellers on their way to Europe, it's also a great destination in its own right. With a stunning mix of old town charm and modern skyscrapers, it's the perfect place for a mid-week getaway or long weekend. 4. Legian, Bali Legian Beach is right next to the popular spot Kuta, though is a bit more relaxed and laid-back, and perfect for travellers who want to chill out. According to booking.com, Legian has become increasingly popular with travellers in the last year. 3. London, England For anyone embarking on a Euro summer, London is a must-see destination for any keen traveller. There's something in London for everyone, from amazing museums and sprawling markets, to iconic landmarks and rich history. 2. Tokyo, Japan While tourism in Japan has surged in recent years, there’s a good reason why, as many travellers are flocking to the nation to experience its rich culture. On top of it being an affordable destination, the unique experience has Aussies heading to Japan in droves, with Tokyo seeing a 25 per cent search increase among Aussies in the last year. 1. Seminyak, Bali Unsurprisingly, a Bali destination has topped the list, as Seminyak offers luxury hotels and villas, high-end dining, and famous beach clubs. Located between Canggu and Kuta, Seminyak has long hosted thousands of tourists looking to escape the cold, with travellers and locals alike basking in the picturesque sunsets. Image credits: Shutterstock

International Travel

Paris in spring, Bali in winter. How ‘bucket lists’ help cancer patients handle life and death

<div class="theconversation-article-body"> <a href="https://theconversation.com/profiles/leah-williams-veazey-1223970">Leah Williams Veazey</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>; <a href="https://theconversation.com/profiles/alex-broom-121063">Alex Broom</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>, and <a href="https://theconversation.com/profiles/katherine-kenny-318175">Katherine Kenny</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a> In the 2007 film <a href="https://www.imdb.com/title/tt0825232/">The Bucket List</a> Jack Nicholson and Morgan Freeman play two main characters who respond to their terminal cancer diagnoses by rejecting experimental treatment. Instead, they go on a range of energetic, overseas escapades. Since then, the term “bucket list” – a list of experiences or achievements to complete before you “kick the bucket” or die – has become common. You can read articles listing <a href="https://www.cnbc.com/2023/01/11/cities-to-visit-before-you-die-according-to-50-travel-experts-and-only-one-is-in-the-us.html">the seven cities</a> you must visit before you die or <a href="https://www.qantas.com/travelinsider/en/trending/top-100-guide/best-things-to-do-and-see-in-australia-travel-bucket-list.html">the 100</a> Australian bucket-list travel experiences. <figure><iframe src="https://www.youtube.com/embed/UvdTpywTmQg?wmode=transparent&start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> But there is a more serious side to the idea behind bucket lists. One of the key forms of suffering at the end of life <a href="https://onlinelibrary.wiley.com/doi/10.1002/pon.4821">is regret</a> for things left unsaid or undone. So bucket lists can serve as a form of insurance against this potential regret. The bucket-list search for adventure, memories and meaning takes on a life of its own with a diagnosis of life-limiting illness. In a <a href="https://journals.sagepub.com/doi/10.1177/14407833241251496">study</a> published this week, we spoke to 54 people living with cancer, and 28 of their friends and family. For many, a key bucket list item was travel. <h2>Why is travel so important?</h2> There are lots of reasons why travel plays such a central role in our ideas about a “life well-lived”. Travel is often linked to important <a href="https://doi.org/10.1016/j.annals.2003.10.005">life transitions</a>: the youthful gap year, the journey to self-discovery in the 2010 film <a href="https://www.imdb.com/title/tt0879870/">Eat Pray Love</a>, or the popular figure of the “<a href="https://theconversation.com/grey-nomad-lifestyle-provides-a-model-for-living-remotely-106074">grey nomad</a>”. The significance of travel is not merely in the destination, nor even in the journey. For many people, planning the travel is just as important. A cancer diagnosis affects people’s sense of control over their future, throwing into question their ability to write their own life story or plan their travel dreams. Mark, the recently retired husband of a woman with cancer, told us about their stalled travel plans: "We’re just in that part of our lives where we were going to jump in the caravan and do the big trip and all this sort of thing, and now [our plans are] on blocks in the shed." For others, a cancer diagnosis brought an urgent need to “tick things off” their bucket list. Asha, a woman living with breast cancer, told us she’d always been driven to “get things done” but the cancer diagnosis made this worse: "So, I had to do all the travel, I had to empty my bucket list now, which has kind of driven my partner round the bend." People’s travel dreams ranged from whale watching in Queensland to seeing polar bears in the Arctic, and from driving a caravan across the Nullarbor Plain to skiing in Switzerland. Nadia, who was 38 years old when we spoke to her, said travelling with her family had made important memories and given her a sense of vitality, despite her health struggles. She told us how being diagnosed with cancer had given her the chance to live her life at a younger age, rather than waiting for retirement: "In the last three years, I think I’ve lived more than a lot of 80-year-olds." <h2>But travel is expensive</h2> Of course, travel is expensive. It’s not by chance Nicholson’s character in The Bucket List is a billionaire. Some people we spoke to had emptied their savings, assuming they would no longer need to provide for aged care or retirement. Others had used insurance payouts or charity to make their bucket-list dreams come true. But not everyone can do this. Jim, a 60-year-old whose wife had been diagnosed with cancer, told us: "We’ve actually bought a new car and [been] talking about getting a new caravan […] But I’ve got to work. It’d be nice if there was a little money tree out the back but never mind." Not everyone’s bucket list items were expensive. Some chose to spend more time with loved ones, take up a new hobby or get a pet. Our study showed making plans to tick items off a list can give people a sense of self-determination and hope for the future. It was a way of exerting control in the face of an illness that can leave people feeling powerless. Asha said: "This disease is not going to control me. I am not going to sit still and do nothing. I want to go travel." <h2>Something we ‘ought’ to do?</h2> Bucket lists are also a symptom of a broader culture that emphasises conspicuous <a href="https://www.youtube.com/watch?v=JH_Pa1hOEVc">consumption</a> and <a href="https://productiveageinginstitute.org.au/">productivity</a>, even into the end of life. Indeed, people told us travelling could be exhausting, expensive and stressful, especially when they’re also living with the symptoms and side effects of treatment. Nevertheless, they felt travel was something they “<a href="https://doi.org/10.1080/14461242.2021.1918016">ought</a>” to do. Travel can be deeply meaningful, as our study found. But a life well-lived need not be extravagant or adventurous. Finding what is meaningful is a deeply personal journey. <hr /> Names of study participants mentioned in this article are pseudonyms.<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/225682/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/leah-williams-veazey-1223970">Leah Williams Veazey</a>, ARC DECRA Research Fellow, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>; <a href="https://theconversation.com/profiles/alex-broom-121063">Alex Broom</a>, Professor of Sociology & Director, Sydney Centre for Healthy Societies, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>, and <a href="https://theconversation.com/profiles/katherine-kenny-318175">Katherine Kenny</a>, ARC DECRA Senior Research Fellow, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</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/paris-in-spring-bali-in-winter-how-bucket-lists-help-cancer-patients-handle-life-and-death-225682">original article</a>. </div>

Caring

7 items you should never put in your dryer

There are just some items that can’t take the dryer’s heat. To avoid shrinking and more these are the ones you should never put in the dryer. 1. Bathing suits The dryer will leave the spandex of bathing suits brittle and broken. 2. Pantyhose The delicate material of pantyhose will shrink in the heat of the dryer and the tumbling motion can cause stockings to get tangled. 3. Rubber-backed rugs They may be small enough to fit in your dyer but the rubber-back of these mats might crumble in the heat of the dryer. 4. Bras The heat of the dryer can damage bra’s elasticity and shape. 5. Clothes with embellishments Embellishments can easily snag in a dryer – and also snag other items in the process. 6. Anything that warns against dryers Double-check the care tag of your item of clothing before chucking it in the dryer. If it warns against using the dryer, it’s for good reason. It will help your clothes look new for longer and prevent shrinking and more. 7. Running shoes The heat can ruin the cushioning, weaken adhesive and shrink the rubber. Image credits: Getty Images

Home & Garden

Dog care below freezing − how to keep your pet warm and safe from cold weather, road salt and more this winter

<a href="https://theconversation.com/profiles/erik-christian-olstad-1505284">Erik Christian Olstad</a>, <a href="https://theconversation.com/institutions/university-of-california-davis-1312">University of California, Davis</a> Time outside with your dog in the spring, summer and fall can be lovely. Visiting your favorite downtown café on a cool spring morning, going to a favorite dog park on a clear summer evening or going on walks along a river when the leaves are changing color are all wonderful when the weather is favorable. But in much of the country, when winter rolls around, previously hospitable conditions can <a href="https://theconversation.com/is-winter-miserable-for-wildlife-108734">quickly turn chilly and dangerous</a> for people and pups alike. Winter brings some unique challenges for dog owners, since dogs still need activity and socialization during colder seasons. Studies have shown that dog owners are almost 50% less likely to walk their dogs <a href="https://doi.org/10.3390/ani11113302">when the weather gets cold</a>. Knowing the basics of winter safety is critical to maintaining a healthy lifestyle for your dog. I am an <a href="https://www.vetmed.ucdavis.edu/faculty/erik-olstad">assistant professor</a> at the University of California Davis School of Veterinary Medicine who weathered polar vortexes with my dog while living in Michigan early in my career. While I’ve since moved to sunny California, I’ve seen how quickly frigid temperatures can turn dangerous for pets. <h2>Breed and age differences</h2> Not all dogs have the same abilities to deal with cold weather. A short-coated dog like a Chihuahua is much more susceptible to the dangers of cold weather than a thick-coated husky. When the weather dips below 40 degrees Fahrenheit (4 degrees Celsius), the well-acclimated husky may be comfortable, whereas the Chihuahua would shiver and be at risk of hypothermia. Additionally, if your dog is used to warm weather, but you decide to move to a colder region, the dog will need time to acclimate to that colder weather, even if they have a thick coat. Age also affects cold-weather resilience. Puppies and elderly dogs can’t withstand the chill as well as other dogs, but every dog is unique – each may have individual health conditions or physical attributes that make them more or less resilient to cold weather. <h2>When is my dog too cold?</h2> Pet owners should be able to recognize the symptoms of a dog that is getting too cold. Dogs will shiver, and some may vocalize or whine. Dogs may resist putting their feet down on the cold ground, or burrow, or try to find warmth in their environment when they are uncomfortable. Just like people, <a href="https://vcahospitals.com/know-your-pet/frostbite-in-dogs">dogs can get frostbite</a>. And just like people, the signs can take days to appear, making it hard to assess them in the moment. The most common sites for frostbite in dogs are their ears and the tips of their tails. Some of the initial signs of frostbite are skin discoloring, turning paler than normal, or purple, gray or even black; red, blistered skin; swelling; pain at the site; <a href="https://www.britannica.com/science/ulcer">or ulceration</a>. Other <a href="https://vcahospitals.com/know-your-pet/frostbite-in-dogs">serious signs of hypothermia</a> include sluggishness or lethargy, and if you observe them, please visit your veterinarian immediately. A good rule to live by is if it is too cold for you, it is too cold for your dog. Getting your dog a <a href="https://www.cnn.com/cnn-underscored/pets/best-winter-dog-coats-jackets">sweater or jacket</a> and <a href="https://www.akc.org/expert-advice/vets-corner/protect-dogs-paws-snow-ice-salt/">paw covers</a> can provide them with protection from the elements and keep them comfortable. Veterinarians also recommend closely monitoring your dog and limiting their time outside when the temperature nears the freezing point or drops below it. <h2>Road salt dangers</h2> Road salt that treats ice on streets and sidewalks <a href="https://www.cbc.ca/news/canada/kitchener-waterloo/ice-salt-toxic-for-pets-1.5020088">can also harm dogs</a>. When dogs walk on the salt, the sharp, rough edges of the salt crystals can irritate the sensitive skin on their paws. Dogs will often lick their feet when they’re dirty, wet or irritated, and if they ingest any salt doing that, they may face GI upset, dehydration, kidney failure, seizures or even death. Even small amounts of pure salt can <a href="https://www.petpoisonhelpline.com/pet-tips/my-dog-ate-road-salt-will-they-be-okay/">disrupt critical body functions</a> in dogs. Some companies make pet-safe salt, but in public it can be hard to tell what type of salt is on the ground. After walking your dog, wash off their feet or boots. You can also keep their paw fur trimmed to prevent snow from balling up or salt collecting in the fur. Applying a thin layer of petroleum jelly or <a href="https://www.akc.org/expert-advice/lifestyle/how-to-make-your-own-paw-balm-for-winter/">paw pad balm</a> to the skin of the paw pads can also help protect your pet’s paws from irritation. <h2>Antifreeze risks</h2> <a href="https://www.britannica.com/science/antifreeze-chemical-substance">Antifreeze, or ethylene glycol</a>, is in most vehicles to prevent the fluids from freezing when it gets cold out. Some people pour antifreeze into their toilets when away from their home to prevent the water in the toilet from freezing. Antifreeze is an exceptionally dangerous chemical to dogs and cats, as it tastes sweet but can be deadly when ingested. If a pet ingests even a small amount of antifreeze, the substance causes a chemical cascade in their body that results in severe kidney damage. If left untreated, the pet may have <a href="https://www.petpoisonhelpline.com/pet-owner-blog/antifreeze-poisoning/">permanent kidney damage or die</a>. There are safer antifreeze options on the market that use ingredients other than ethylene glycol. If your dog ingests antifreeze, please see your veterinarian immediately for treatment. When temperatures dip below freezing, the best thing pet owners can do is keep the time spent outside as minimal as possible. Try some <a href="https://www.akc.org/expert-advice/lifestyle/great-indoor-games-to-play-with-your-dog/">indoor activities</a>, like hide-and-seek with low-calorie treats, fetch or even an interactive obstacle course. Food puzzles can also keep your dog mentally engaged during indoor time. Although winter presents some unique challenges, it can still be an enjoyable and healthy time for you and your canine companion.<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/221709/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/erik-christian-olstad-1505284">Erik Christian Olstad</a>, Health Sciences Assistant Professor of Clinical Veterinary Medicine, <a href="https://theconversation.com/institutions/university-of-california-davis-1312">University of California, Davis</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/dog-care-below-freezing-how-to-keep-your-pet-warm-and-safe-from-cold-weather-road-salt-and-more-this-winter-221709">original article</a>.

Family & Pets

Days are getting shorter and colder. 6 tips for sticking to your fitness goal

<a href="https://theconversation.com/profiles/juliana-s-oliveira-709434">Juliana S. Oliveira</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>; <a href="https://theconversation.com/profiles/anne-tiedemann-409380">Anne Tiedemann</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>; <a href="https://theconversation.com/profiles/cathie-sherrington-561141">Cathie Sherrington</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>, and <a href="https://theconversation.com/profiles/leanne-hassett-1497197">Leanne Hassett</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a> Daylight saving ends this weekend. The days are shorter and getting colder. It’s less appealing to cycle to work, walk after dinner, or wake up early to hit the gym. But we all know daily physical activity is essential for our health and wellbeing. Physical activity releases feel-good neurotransmitters in our brains, which help to alleviate <a href="https://bjsm.bmj.com/content/57/18/1203">stress, anxiety, and depression</a>. It also helps <a href="https://www.cdc.gov/chronicdisease/resources/infographic/physical-activity.htm#:%7E:text=Regular%20physical%20activity%20helps%20improve,depression%20and%20anxiety%2C%20and%20dementia.">prevent diseases</a> such as diabetes, heart disease and some cancers. Regular physical activity can prolong life and improve overall quality of life. However, many of us find it difficult to achieve the <a href="https://bjsm.bmj.com/content/54/24/1451">recommended 150 minutes of moderate intensity physical activity</a> each week. In fact, three out of ten Australians and half of Australians aged 65 and over are <a href="https://www.aihw.gov.au/reports/physical-activity/physical-activity">inactive</a>. So, what can you do to stay motivated and keep moving regularly through the darker months? Here are some tips. <h2>1. Nail those goals</h2> Goals can provide us with a sense of purpose, meaning and direction. But just aiming to “get fit” is less likely to cut it than goals that are SMART: specific, measurable, achievable, realistic and time-bound. Specific goals are based on an observable behaviour or activity, such as step count, yoga, or competing in an event. Measurable goals can be tracked, so you can easily tell whether you have ticked them off. Achievable goals are realistic and based on your current fitness and abilities. But they can and should still be challenging. If you’ve only ever run 5 kilometres, it won’t be realistic to aim for a half marathon in the next month. But you could aim for 10 kilometres. Relevant goals hold personal meaning for you. Articulating why it’s important will help motivate you to do it. Time-bound goals include a target date for achieving them. You can always revisit your deadline if you’re ahead of schedule or if it’s too unrealistic. An example of a SMART goal could be: “I will walk 10,000 steps every weekday within a month.” Then you can break it down into short-term goals to make it more achievable. If you currently walk 6,000 steps each day, you can increase steps by 1,000 every week to reach 10,000 by the end of the month. <h2>2. Keep track</h2> More than <a href="https://www.deloitte.com/au/en/Industries/tmt/blogs/digital-consumer-trends-who-is-purchasing-what-now.html">90% of Australians own a smartphone</a> and more than <a href="https://www.deloitte.com/au/en/Industries/telecom-media-entertainment/blogs/digital-consumer-trends-touch-less-healthier-wiser.html">two in ten own a fitness tracker or a smartwatch</a>. These devices can help you track your goals and activity, keep you accountable and increase your motivation. A 2021 systematic review suggests fitness trackers and smartphone apps <a href="https://bjsm.bmj.com/content/55/8/422">can assist people</a> to increase their step count by up to 2,000 steps per day. <a href="https://bjsm.bmj.com/content/54/20/1188">Our research</a> demonstrated fitness trackers can also be helpful in increasing physical activity among older people. If you don’t have a fitness tracker, you can buy low-cost pedometers or track your activity times using paper and pen. <h2>3. Plan for success but prepare for barriers</h2> Take some time to think about the potential barriers that could prevent you from being active and plan solutions to overcome them. For example, if the cost of physical activity is too high for you, try to find options that are free, such as walking or running. You can also consider free online programs or streaming videos. If you find it difficult to fit exercise into your busy schedule, try exercising early in the morning before you start your day and laying out your workout clothes the night before. You could consider joining a gym with flexible timetables. A good strategy is to try to fit physical activity into your daily routine, such as walking or cycling to work. If you are living with a chronic health condition or disability, consider seeking guidance from a health professional such as an <a href="https://www.essa.org.au/Public/SearchAEP.aspx?WebsiteKey=44cfee74-3fc3-444e-bb5f-77729c390872">exercise physiologist</a> or <a href="https://choose.physio/find-a-physio">physiotherapist</a>. Start slow and gradually increase your activity and find something you enjoy so you are more likely to keep doing it. <h2>4. Team up with a workout friend</h2> Physical activity can be more fun when you do it with someone else. Studies show <a href="https://www.sciencedirect.com/science/article/abs/pii/S0167494322002953?via%253Dihub&sa=D&source=docs&ust=1712015093947627&usg=AOvVaw1XGQBMDMFspL5YrQtKo3h">working out with friends can be more motivating and enjoyable</a>. It can also help with accountability, as some people are more likely to show up when they have a workout partner. So, <a href="https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(13)60407-9/fulltext">find a friend</a> who supports your goal of being more active or maintaining your current activity levels. <h2>5. Plan yourself a little treat</h2> Make an appointment with yourself in your diary to exercise. Approach it as just as important as meeting a friend or colleague. One idea is to delay something you’d rather do and make it a reward for sticking to your activity appointment. If you really want to go out for coffee, do a hobby, or watch something, go for a walk first. Research shows <a href="https://www.nature.com/articles/s41746-019-0164-3">incentives can dramatically increase physical activity levels</a>. <h2>6. Find a coach</h2> If you want more support, <a href="https://bjsm.bmj.com/content/51/19/1425">health coaching</a> might be an option. Trained professionals work one-on-one with people, sometimes via telehealth, to find out what’s reducing their motivation to make healthier choices, such as exercise. Then they employ behaviour change techniques to help them meet their health goals. Our recent research suggests health coaching can improve physical activity in <a href="https://bjsm.bmj.com/content/58/7/382">older people</a> and those with <a href="https://www.sciencedirect.com/science/article/pii/S183695532400002X">chronic pain</a>. In <a href="https://www.gethealthynsw.com.au/#:%7E:text=About%20the%20Get%20Healthy%20Service&text=Delivered%20by%20NSW%20Health%2C%20the,and%20achieve%20your%20health%20goals">New South Wales</a>, <a href="https://lifeprogram.org.au/">Victoria</a> and <a href="https://www.myhealthforlife.com.au/">Queensland</a>, these sessions are government-subsidised or free.<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/226619/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/juliana-s-oliveira-709434">Juliana S. Oliveira</a>, Postdoctoral Research Fellow, Physical Activity, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>; <a href="https://theconversation.com/profiles/anne-tiedemann-409380">Anne Tiedemann</a>, Professor of Physical Activity and Health, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>; <a href="https://theconversation.com/profiles/cathie-sherrington-561141">Cathie Sherrington</a>, Professor, Institute for Musculoskeletal Health, School of Public Health, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>, and <a href="https://theconversation.com/profiles/leanne-hassett-1497197">Leanne Hassett</a>, Associate Professor in Physiotherapy, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</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/days-are-getting-shorter-and-colder-6-tips-for-sticking-to-your-fitness-goals-226619">original article</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

Sunscreen: why wearing it even in winter could be a good idea

<a href="https://theconversation.com/profiles/karl-lawrence-404481">Karl Lawrence</a>, <a href="https://theconversation.com/institutions/kings-college-london-1196">King's College London</a> Sunscreen has taken centre stage in many skincare routines, especially among those hoping to prevent visible signs of ageing. But while it makes sense to wear sunscreen every day in the summer when the sun’s rays are most powerful, many may wonder whether there’s any benefit of wearing sunscreen daily in the winter months. The sun’s radiation can reach us during all times of the year. This means that in both summer and winter, we are exposed to infrared radiation, as well as UVA and UVB rays. UVB is mainly responsible for sunburn and DNA damage – and can also <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3709783/">cause skin cancers</a> as a result of long-term exposure. UVA radiation does contribute to these processes somewhat, but it’s less effective at doing so. UVA can penetrate deeper into the skin, however, which can damage the collagen – a key part of the skin that keeps it firm and elastic. This can cause the <a href="https://pubmed.ncbi.nlm.nih.gov/25234829/">skin to age faster</a>, leading to wrinkles, fine lines and changes in pigmentation. The amount of UVA and UVB radiation that reaches the Earth’s surface changes across the seasons. This is due to the angle of the Sun in the sky, as well as other factors such as latitude and time of day. For example, let’s compare how <a href="https://onlinelibrary.wiley.com/doi/full/10.1111/php.12422">UVA and UVB radiation varies</a> at solar noon in London, UK and Kuala Lampur, Malaysia (which is near the equator). In latitudes closer to the equator (such as in Kuala Lampur), the amount of UVA and UVB radiation throughout the year remains fairly consistent. But in higher latitudes, such as London, there’s almost no UVB radiation throughout the winter months – whereas there’s still some UVA radiation. Not only that, but people living further from the equator may tend to spend less time exposed to the Sun in winter due to the colder temperatures and variable weather. And when they do go outside, they may cover their skin up – usually leaving only their face exposed to the Sun for much shorter periods of time. But UVA radiation can still penetrate through clouds and windows. While our exposure to these rays is probably minimal, skin damage from UV exposure is <a href="https://www.sciencedirect.com/science/article/pii/S0079610706000162">accumulated over decades</a>, so anything that can be done to reduce exposure (and damage) over time may be beneficial. This is also true of UVB exposure – although it is less relevant in winter months at higher latitudes. This may be where daily sunscreen use during the winter is still of benefit. Sunscreens are formulated to reduce exposure to <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6978633/">both UVB and UVA rays</a> – although they are usually more effective at reducing exposure to UVB radiation. They have been designed in this way to prevent the most damaging effects of the Sun, such as sunburn and DNA damage. The impact of exposure to UVA radiation has only been considered more recently. Numerous studies have shown regular sunscreen use over many years is effective at <a href="https://onlinelibrary.wiley.com/doi/10.1111/phpp.12109">preventing skin damage</a>, photoaging and skin cancers. The most robust trials suggest daily sunscreen use is most effective, but this will be dependent on the factors discussed above. <h2>The effects of altitude and snow</h2> One place where winter sunscreen use is especially important is when skiing or snowboarding – or when you’re otherwise going to be outside for extended periods of time, at higher altitudes on snow-covered mountains. Both altitude and snow can increase the doses of <a href="https://www.who.int/news-room/questions-and-answers/item/radiation-ultraviolet-(uv)">UVA and UVB radiation</a> a person receives. Snow can reflect up to 80% of UV radiation emitted by the Sun – effectively almost doubling the doses received. Also, for every 1,000-foot increase in altitude, there’s a 10% increase in UV exposure. This is why it’s essential to protect the skin and eyes by wearing sunscreen, protective clothing and sunglasses that block both types of UV ray. This is also true when spending time in snowy environments, such as when hiking or skating. Sunscreens are generally regarded as safe and tend to have few adverse effects, so you don’t need to worry too much about wearing one throughout the year. However, there are some points to consider, especially if you have skin conditions. For example, sunscreen can <a href="https://www.byrdie.com/does-sunscreen-cause-acne-or-help-it-7546147">exacerbate acne</a> and cause <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7759112/">irritation and allergic reactions</a> – although these are rare. There are also emerging concerns from regulatory agencies about the <a href="https://jamanetwork.com/journals/jama/fullarticle/2759002">absorption of UV filters into the body</a>. However, the consequences of such absorption and the potential affects on health are not well defined and require more research. Still, the benefits of sunscreen have been widely demonstrated – as has their safety. So if you want to prevent premature signs of ageing, it’s important to use sunscreen at all times you may be exposed to the Sun – especially in the summer months. While the benefits of wearing sunscreen in winter are less well defined, there’s probably no harm in wearing one if you want to. If you decide to use sunscreen in winter, use ones that have broad spectrum five-star UVA protection. For day-to-day use, high SPF sunscreens are unlikely to provide a large benefit, particularly if spending only short periods outside. However, if skiing, a <a href="https://www.jaad.org/article/S0190-9622(17)31086-1/fulltext">high-SPF sunscreen</a> with five-star UVA protection would be beneficial.<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/219640/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/karl-lawrence-404481">Karl Lawrence</a>, Research fellow, <a href="https://theconversation.com/institutions/kings-college-london-1196">King's College London</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/sunscreen-why-wearing-it-even-in-winter-could-be-a-good-idea-219640">original article</a>.

Beauty & Style

Bunnings' inspired makeover proves a smash hit with Bluey fans

Bunnings' latest Bluey inspired makeover has proven to be a hit among fans, as they brought to life part of the cartoon-world. The hardware giant collaborated with the hit children's cartoon and rebranded six of its Australian stores and one New Zealand outlet with the moniker "Hammerbarn." This is an homage to a popular episode with the same name, where the cartoon heelers go to a hardware store that looks exactly like Bunnings. “We’re excited to be working with BBC Studios and Ludo Studio to bring Hammerbarn to life in stores across the country,” says Ryan Baker, chief customer officer of Bunnings. The rebranding goes beyond the exterior with special Hammerbarn merch, Bluey-branded trolleys, and Bluey-themed workshops, meet-and-greets and scavenger hunts every weekend. “Our team across Australia have had kids and parents referring to Bunnings as Hammerbarn ever since the episode aired, so making this a reality in our stores for customers is really special," Baker said. “We wanted the Hammerbarn experience to be accessible to as many ‘Bluey’ fans and customers as we could, so it’s great to have a Hammerbarn transformation in each state – even down to the kids’ trolleys that have been rebranded." Hammerbarns resemblance to Bunnings is no coincidence as the episode reportedly took inspiration from a real store in Keperra, Queensland. “The design of Hammerbarn draws inspiration from the Bunnings Keperra store in Brisbane, the home of Bluey, which adds an extra layer of significance," Ludo Studios, the creators of the series said. “We are thrilled to offer fans the opportunity to experience Hammerbarn for real life; it’s everything we’ve ever wanted!” Images: Perth Now

Home & Garden

Simple, cheap remedies you’ll wish you knew sooner

Pull nails out gently If you’re planning to pull a nail out of wood but worry that the hammerhead will hurt the grain, protect the wood before using the hammer. How? Slip a plastic spatula under the head of the hammer before you start the job. Replace the oil in baking Fat makes baked goods moist and tender. It’s also incredibly kilojoule-dense, and if you’re cutting kilojoules, it’s an easy place to start. But say you don’t like your cakes and muffins dry and tough? Then applesauce is the answer. Replace up to 2/3 of the oil called for in a cake or muffin recipe with applesauce, and you’ll add moisture and flavour while ditching the fat. Sweeten the house People who are allergic to air fresheners and sprays can still enjoy the benefits of a sweet-smelling house. Wet a cotton ball with vanilla and dab it very lightly on the outside of a regular light bulb (not a halogen bulb) in your lamps. When you turn on the lamp, the bulb heats up and a faint but alluring scent of vanilla drifts out. Soften beans Afraid those dry beans have been on the shelf too long? Help soften them by adding a pinch of baking soda to the soaking water. Add a fresh pinch to the cooking water, too, and you can significantly reduce the aftereffects of bean consumption. Neutralise mouth ulcers Place an antacid tablet directly on the ulcer, giving it time to dissolve, or simply chew one. The medicine will stop the acids and enzymes in your mouth from attacking the tissue in the sore, and more importantly, it will stop the pain. (Be sure to check the product’s label for correct dosage instructions.) Rip it off the right way Pulling an adhesive bandage off your child’s skin can be tough on both of you. Make it easier by rubbing the bandage with a cotton ball soaked in baby oil. Rub until you can easily pull the bandage off. This trick works well for adults with sensitive skin, too. Clean your carpet overnight Whether your carpet smells dank and musty because of a pet, a smoker, or a season of rain, take the odour out with baby powder. Using a flour sifter, spread the powder generously over the carpet. Let it sit overnight – a few hours will suffice, but overnight is better – and vacuum up the powder and the smells in the morning. Hold a nail Stop hitting your fingers every time you hammer a nail in place. Use the teeth of an ordinary comb to hold the nail while you hammer. Get rid of fishy odours Been chopping something pungent? The smell of garlic or fish can linger on your fingers long after the food is gone. Avoid that by scrubbing your wet hands with baking soda, just as if it were soap, then rinse in warm water. Your hands will smell sweet – and feel softer, too. Remove splinters Make a paste of Epsom salt and water and apply it to the area harbouring a splinter. The paste will pull the splinter to the surface of the skin in about 10 minutes. It will pull insect stingers out of your skin, too. Skip the shaving cream Use hair conditioner for a smooth, clean shave – on your legs, under your arms, and (for men) even on your face. The conditioner will pamper your skin as well as your hair! You can also use hair conditioner as a soothing agent for legs irritated by shaving. Preserve your bouquet Spray the undersides of your cut flowers – leaves and petals – with hair spray to prolong their life. Be sure to stand about 30 cm away when you spray them for best results. Numb your eyebrows Make plucking your eyebrows much less painful by putting an ice pack on them until they’re uncomfortably cold. At that point your skin will be numb enough to begin plucking. You won’t even feel the tug! Train a dog Most dogs hate the sound of dried beans rattling in a can. Use that to your advantage when training a dog by putting a handful of beans in the bottom of an empty aluminium soda can. Seal the top with a strip of tape. When your dog misbehaves, shake the can a couple of times. Refresh tired feet Take this tip from marathon runners, who know that a ten-minute soak in a sugarless mouthwash will take your tootsies from tired to terrific. Alcohol invigorates and mint will make them smell sweet again. Remove crayon from walls If you find crayon markings on your wall, don’t get mad – get shaving cream. Spray the shaving cream directly onto the offending artwork, and scrub it off with a toothbrush or scrub brush. Make a close-fitting hot pad Soothe aching muscles with a custom-made hot pad. Fill a long sock, such as a tube or athletic sock, with dried beans, and tie the top tightly closed with ribbon or string. Heat in a microwave on high for 30 seconds. Place it right on your painful spot. You can drape it around a stiff neck or wrap it around a sore wrist, and it will mould to you, providing faster relief. Keep cookies fresh Homemade chocolate chip cookies can go from tasting deliciously soft and cakey to feeling hard and crunchy in a matter of days. To keep your freshly baked cookies tasting freshly baked, put a couple of slices of bread into the tin or jar where you store the cookies, laying the bread right on top of the cookies. The bread will keep that just-out-of-the-oven flavour and texture intact for up to a week. Wax your windows Do your double-hung windows have a bumpy ride every time you open or close them? If your windows don’t slide up and down with ease, let a candle help them. Clean the insides of the window frame where the sashes travel, then rub the same area with a candle. The windows will have a much smoother journey. Make your garage floor sparkle If you find a puddle of oil on your concrete garage floor, pour paint thinner over it, and then cover the area with kitty litter. (Make sure that the garage is well ventilated by keeping the garage door open, and don’t let anyone smoke or strike matches anywhere near the affected area – and keep the cats away.) The kitty litter will absorb the oil. Just sweep up the mess and you’re done. Clean smudges off suede Suede jackets, shoes and handbags look great, but they’re prone to picking up dirty marks. Clean fresh smudges off quickly and easily before they set into stains by rubbing the suede gently with a piece of fresh white bread. Use a small, circular motion. You may need a second piece of bread to get the spot clean. Keep down items from clumping Throw one or two tennis balls into the dryer the next time you dry down-filled items like pillows, comforters and jackets. They’ll ditch the flat look they get from the washing machine and puff up again with pride. Repel mosquitos You may love the mild apple-like flavour of chamomile tea but mosquitoes absolutely hate it. Brew a very strong batch of chamomile tea and keep it in a spray bottle in the fridge. Before you relax in the back yard or run through the tall grass, spray exposed skin liberally. It’s fragrant, potent and totally safe for children. Fill a stripped screw-hole If the screw keeps turning and turning in a piece of wood, push a bit of foil loosely in the hole and try again. It will grab tight. Freshen a fridge If something soured in your fridge or the freezer failed, clean it out, then fill a wide, shallow bowl with fresh coffee grounds and leave it in the fridge or freezer overnight. The strong scent of coffee will permeate the space, eradicating any hint of what went wrong. Banish burned-on food Liquid fabric softener is your best friend when it comes time to scrub pots and pans soiled by your worst enemy, baked-on grime. Soak the offending vessel in water and a squirt of fabric softener. Let it sit for an hour. Wash and rinse it all away. Feed your plants Used coffee grounds are full of nitrogen, so it’s a shame to throw them away each day. Coffee is especially good for acid-loving plants, like camellias, evergreens, rhododendrons, azaleas and rose bushes, so be sure they don’t miss out on the occasional cup of coffee – grounds, that is. Oil squeaky hinges Spray a little oil-based furniture polish on a squeaky door hinge, then open and shut the door several times to work the lubricant into the hinge. The furniture polish is a lot cleaner than the oil you’d usually use for a noisy hinge, and it works just as well to silence the squeak. Untangle a shoelace Junior got a knot in his sneaker and pulled and pulled until it became an impenetrable mass. Sprinkle the knot generously with cornflour, and then work the knot again. The laces will start to slip and slide, and you’ll be able to get the kinks out. Breathe better with a paper bag Got a case of the hiccups? Stop them before you start to hurt. Breathe in and out of a paper bag for a few minutes. You’ll create a build-up of carbon dioxide in your lungs, which helps relax your diaphragm – whose involuntary tightening causes the hiccups in the first place. This trick works if you’re hyperventilating, too. Give the jar a hand No more banging a jar on the floor to loosen a tight lid. No more running it under hot water. And no more fancy tools designed to do the trick – that somehow don’t work. Just put on a pair of rubber gloves, and open the jar with ease. (Psst – sandpaper also works wonders!) Image credits: Getty Images This article originally appeared on <a href="https://www.readersdigest.co.nz/food-home-garden/home-tips/1-solutions-youll-wish-you-knew-sooner?pages=1" target="_blank" rel="noopener">Reader's Digest</a>.

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