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Matcha is having a moment. What are the health benefits of this green tea drink?

<div class="theconversation-article-body"> <p><em><a href="https://theconversation.com/profiles/evangeline-mantzioris-153250">Evangeline Mantzioris</a>, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a></em></p> <p>Matcha has experienced a surge in popularity in recent months, leading to reports of <a href="https://www.smh.com.au/goodfood/sydney-eating-out/global-matcha-shortage-hits-australia-as-skyrocketing-popularity-rivals-coffee-20241101-p5kn6v.html">global shortages</a> and price increases.</p> <p>If you haven’t been caught up in the craze, matcha is a powdered version of green tea. On a cafe menu you might see a hot or iced matcha latte, or even a matcha-flavoured cake or pastry. A quick google brings up <a href="https://www.foodandwine.com/tea/matcha-tea/matcha-recipes">countless recipes</a> incorporating matcha, both sweet and savoury.</p> <p>Retailers and cafe owners <a href="https://www.smh.com.au/goodfood/sydney-eating-out/global-matcha-shortage-hits-australia-as-skyrocketing-popularity-rivals-coffee-20241101-p5kn6v.html">have suggested</a> the main reasons for matcha’s popularity include its “instagrammable” looks and its purported health benefits.</p> <p>But what are the health benefits of matcha? Here’s what the evidence says.</p> <h2>First, what is matcha?</h2> <p><a href="https://www.mdpi.com/1420-3049/26/1/85">Matcha</a> is a finely ground powder of green tea leaves, which come from the plant <em>Camellia sinensis</em>. This is the same plant used to make green and black tea. However, the <a href="https://naokimatcha.com/blogs/articles/how-matcha-is-made-in-japan">production process</a> differentiates matcha from green and black tea.</p> <p>For matcha, the tea plant is grown in shade. Once the leaves are harvested, they’re steamed and dried and the stems are removed. Then the leaves are carefully ground at controlled temperatures to form the powder.</p> <p>The <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC6571865/">production process</a> for green tea is simpler. The leaves are picked from the unshaded plants, heated and then dried. We then steep the dried leaves in hot water to get tea (whereas with matcha the whole leaf is consumed).</p> <p>With black tea, after the leaves are picked they’re exposed to air, which leads to oxidation. This makes the leaves black and gives the tea a different flavour.</p> <h2>A source of phytonutrients</h2> <p>Phytonutrients are <a href="https://theconversation.com/phytonutrients-can-boost-your-health-here-are-4-and-where-to-find-them-including-in-your-next-cup-of-coffee-132100">chemical compounds found in plants</a> which have a range of benefits for human health. Matcha contains several.</p> <p>Chlorophyll gives plants such as <em>Camellia sinensis</em> their green colour. There’s some evidence chlorophyll may have <a href="https://www.mdpi.com/2223-7747/12/7/1533">health benefits</a> – including anti-inflammatory, anti-cancer and anti-obesity effects – due to its antioxidant properties. Antioxidants neutralise free radicals, which are unstable molecules that harm our cells.</p> <p>Theanine has been shown to <a href="https://www.mdpi.com/2504-3900/91/1/32">improve sleep</a> and <a href="https://link.springer.com/article/10.1007/s11130-019-00771-5?crsi=662497574&amp;cicada_org_src=healthwebmagazine.com&amp;cicada_org_mdm=direct">reduce stress and anxiety</a>. The only <a href="https://www.sciencedirect.com/topics/medicine-and-dentistry/theanine">other known</a> dietary source of theanine is mushrooms.</p> <p>Caffeine is a phytonutrient we know well. Aside from increasing alertness, caffeine has also demonstrated <a href="https://www.tandfonline.com/doi/full/10.1080/10408398.2022.2074362?casa_token=ADALIs6M3iAAAAAA%3AXpY35se0zLddAEIbZAaeCcDaNWm94s2WJaDHfXDRvVZgYq_xTxsCFuvtrtNXMXAL9uNIvLlYzO30aA#abstract">antioxidant effects</a> and some protection against a range of chronic and neurodegenerative diseases. However, too much caffeine can have negative side effects.</p> <p>Interestingly, shading the plants while growing appears to <a href="https://scijournals.onlinelibrary.wiley.com/doi/pdfdirect/10.1002/jsfa.9112?casa_token=KxVD9i9p4BsAAAAA:OwGTauXFHAndyJkam8WuXrmGQ2k1kaSRu5pOqJOrhSyRSeWkDwdrI23qaD5WVH1HGqZLFdsjP9ZTvolw">change the nutritional composition</a> of the leaf and may lead to higher levels of these phytonutrients in matcha compared to green tea.</p> <p>Another compound worth mentioning is called catechins, of which there are several different types. Matcha powder similarly has <a href="https://theconversation.com/matcha-tea-what-the-current-evidence-says-about-its-health-benefits-202782">more catechins</a> than green tea. They are strong antioxidants, which <a href="https://link.springer.com/article/10.1186/s41702-020-0057-8">have been shown</a> to have protective effects against bacteria, viruses, allergies, inflammation and cancer. Catechins <a href="https://www.sciencedirect.com/topics/medicine-and-dentistry/catechin#:%7E:text=Catechin%20is%20naturally%20present%20in,containing%20many%20catechins%20%5B130%2C131%5D.">are also found</a> in apples, blueberries and strawberries.</p> <h2>What are the actual health benefits?</h2> <p>So we know matcha contains a variety of phytonutrients, but does this translate to noticeable health benefits?</p> <p>A review published in 2023 identified only <a href="https://www.sciencedirect.com/science/article/pii/S2665927122002180">five experimental studies</a> that have given matcha to people. These studies gave participants about 2–4g of matcha per day (equivalent to 1–2 teaspoons of matcha powder), compared to a placebo, as either a capsule, in tea or in foods. Matcha decreased stress and anxiety, and improved memory and cognitive function. There was no effect on mood.</p> <p>A <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0309287">more recent study</a> showed 2g of matcha in older people aged 60 to 85 improved sleep quality. However, in <a href="https://www.mdpi.com/2072-6643/16/17/2907">younger people</a> aged 27 to 64 in another study, matcha had little effect on sleep.</p> <p>A <a href="https://link.springer.com/article/10.1007/s11130-022-00998-9">study in people with obesity</a> found no difference in the weight loss observed between the matcha group and the control group. This study did not randomise participants, and people knew which group they had been placed in.</p> <p>It could be hypothesised that given you consume all of the leaf, and given levels of some phytonutrients may be higher due to the growing conditions, matcha may have more nutritional benefits than green tea. But to my knowledge there has been no direct comparison of health outcomes from green tea compared to matcha.</p> <h2>There’s lots of evidence for green tea</h2> <p>While to date a limited number of studies have looked at matcha, and none compared matcha and green tea, there’s quite a bit of research on the health benefits of drinking green tea.</p> <p>A <a href="https://www.sciencedirect.com/science/article/pii/S0944711317300867?casa_token=dpbAEQQ7Is4AAAAA:U6aggqZM_G0KJ8hkhx0TGSvQywr4utlgKzwUnUj9x5t9eWd-FKENjbTvUv6s4TBTaPYrob-qQkk">systematic review of 21 studies</a> on green tea has shown similar benefits to matcha for improvements in memory, plus evidence for mood improvement.</p> <p>There’s also evidence green tea provides other health benefits. Systematic reviews have shown green tea leads to <a href="https://onlinelibrary.wiley.com/doi/full/10.1002/ptr.6697?casa_token=1eAbmeGillYAAAAA%3ABNGBB6EuRFXIDWHgsa7E798wfC0MQK2r3yOmAlFzR2sxyD9Xt837VoCel0l6Tsh3RRO19t-YUm1GqO7Y">weight loss in people with obesity</a>, lower levels of <a href="https://link.springer.com/article/10.1186/s12937-020-00557-5">certain types of cholesterol</a>, and <a href="https://journals.lww.com/md-journal/fulltext/2020/02070/Effect_of_green_tea_supplementation_on_blood.36.aspx/1000">reduced blood pressure</a>. Green tea may also <a href="https://www.nature.com/articles/s41430-020-00710-7">lower the risk of certain types of cancer</a>.</p> <p>So, if you can’t get your hands on matcha at the moment, drinking green tea may be a good way to get your caffeine hit.</p> <p>Although the evidence on green tea provides us with some hints about the health benefits of matcha, we can’t be certain they would be the same. Nonetheless, if your local coffee shop has a good supply of matcha, there’s nothing to suggest you shouldn’t keep enjoying matcha drinks.</p> <p>However, it may be best to leave the matcha croissant or cronut for special occasions. When matcha is added to foods with high levels of added sugar, salt and saturated fat, any health benefits that could be attributed to the matcha may be negated.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/242775/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/evangeline-mantzioris-153250">Evangeline Mantzioris</a>, Program Director of Nutrition and Food Sciences, Accredited Practising Dietitian, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/matcha-is-having-a-moment-what-are-the-health-benefits-of-this-green-tea-drink-242775">original article</a>.</em></p> </div>

Food & Wine

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How do we save ageing Australians from the heat? Greening our cities is a good start

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/claudia-baldwin-248780">Claudia Baldwin</a>, <a href="https://theconversation.com/institutions/university-of-the-sunshine-coast-1068">University of the Sunshine Coast</a>; <a href="https://theconversation.com/profiles/jason-byrne-6066">Jason Byrne</a>, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a>, and <a href="https://theconversation.com/profiles/tony-matthews-234160">Tony Matthews</a>, <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a></em></p> <p>Heatwaves have killed more Australians than <a href="https://ama.com.au/ausmed/heatwave-health-warning">road accidents</a>, fires, floods and <a href="https://www.sciencedirect.com/science/article/pii/S1462901114000999">all other natural disasters combined</a>. Although <a href="https://theconversation.com/forget-heatwaves-our-cold-houses-are-much-more-likely-to-kill-us-83030">recent research</a> shows extreme cold is a worry in some parts of Australia, <a href="https://theconversation.com/2018-19-was-australias-hottest-summer-on-record-with-a-warm-autumn-likely-too-112616">our hottest summer on record</a> points to more heat-related deaths to come. The <a href="https://theconversation.com/the-stubborn-high-pressure-system-behind-australias-record-heatwaves-110442">record heatwaves</a> have highlighted the damaging effects of heat stress. Understandably, it’s becoming a major <a href="https://ama.com.au/ausmed/heatwaves-nation%E2%80%99s-deadliest-natural-disaster-0">public health challenge</a>.</p> <p>The risk of extreme heat events and the adverse impacts on older people has been extensively <a href="https://jech.bmj.com/content/64/9/753.short">discussed in research</a>. Remarkably, very little attention has been paid to the role of urban greenery in reducing heat stress for seniors.</p> <p>Older people are particularly at risk of heat stress. Pre-existing medical conditions and limited mobility increase their vulnerability. <a href="http://www.cmaj.ca/content/182/10/1053.short">Deaths of older people increase</a> during extreme heat events.</p> <p>The physical features of urban areas shape the capacity of older adults to engage in many activities when it’s hot. These include vegetation volume and coverage, <a href="https://theconversation.com/building-cool-cities-for-a-hot-future-57489">thermal design</a>, and the extent of shading in public areas and walkways. Increasing urban greenery may offer a way to improve older people’s comfort and social experience.</p> <h2>Ageing adds urgency to greening</h2> <p>It is expected <a href="http://www.un.org/en/sections/issues-depth/ageing/">20% of the global population</a> will be older than 60 by 2050. The figure for Australia <a href="http://www.abs.gov.au/ausstats/abs@.nsf/mediareleasesbyTopic/2CA2134677EF9D03CA257C2E0017283B?OpenDocument">is even higher</a>, at 23%. This means that by 2050 around one in four Australians will be more vulnerable to extreme heat.</p> <figure class="align-right zoomable"></figure> <p>Climate change may make the problem worse by <a href="https://www.sciencedirect.com/science/article/pii/S0749379708006867">fuelling even more extreme heat</a> events.</p> <p>Planning our urban centres to meet the needs of a <a href="https://www.aihw.gov.au/reports/older-people/older-australia-at-a-glance/contents/demographics-of-older-australians">rapidly ageing population</a> is a matter of urgency. Urban greening to reduce their vulnerability to heat stress should be central to this agenda. It can also improve people’s quality of life, reduce <a href="https://www.sciencedirect.com/science/article/abs/pii/S1353829208001172">social isolation and loneliness</a>, and ease the burden on health systems.</p> <p>An important task is matching the design of communities with the needs of an ageing population. Where older adults live and the quality of their local areas strongly influence their lived experiences. Yet <a href="https://journals.sagepub.com/doi/abs/10.1177/0885412217704649">recent research</a> found the experiences of seniors were often not accounted for in research on neighbourhood design.</p> <h2>What about aged care?</h2> <p>People face choices about where they live as they age. The common choices are to “<a href="https://theconversation.com/for-australians-to-have-the-choice-of-growing-old-at-home-here-is-what-needs-to-change-91488">age in place</a>” or to move into aged care.</p> <p>Ageing in place includes living in one’s own home or <a href="https://theconversation.com/co-housing-works-well-for-older-people-once-they-get-past-the-image-problem-79907">co-habiting with relatives or friends</a>. Around 90% of Australian seniors <a href="https://www.pc.gov.au/research/completed/housing-decisions-older-australians/housing-decisions-older-australians.pdf">choose this option</a>, with the remainder opting for aged-care facilities.</p> <p>If one in ten Australian seniors live in aged-care facilities, it is clear these should be designed to minimise heat stress. This isn’t just good for residents; it may also benefit operators by lowering health-care and electricity costs.</p> <p>While these facilities are purpose-built for older people, many in Australia were built well over a decade ago, when heat stress was not such a large concern. Many more facilities are being built now and will be into the future. Yet it is uncertain whether they are being actively designed to reduce the impacts of heat.</p> <h2>What has our research found?</h2> <p>We recently conducted a focus group to investigate this issue. Participants were senior managers from four large corporate providers of aged care in Australia. We investigated if and how providers try to minimise heat stress through design. We also sought to understand the rationales used to support these design approaches.</p> <p>Several participants reported on refurbishments that they expect will have cooling effects. Cited design approaches included green roofs and walls, as well as sensory gardens. Other expected benefits included reducing anxiety and improving the mental health of residents.</p> <p>The fact that single design interventions could produce multiple benefits improved the potential for corporate buy-in. Participants expected that increasing green space and green cover would give their facilities a competitive advantage by attracting more clients and providing a better working environment for staff.</p> <p>Participants also reported on challenges of including greening in their projects. For example, the benefits of trees were weighed against concerns about roots disrupting footpaths and becoming trip hazards. Species selection was another concern, with fears that inappropriate plants could die and undermine support for greening programs.</p> <p>Our research suggests that more can be done to make cities hospitable for older people, especially during extreme heat. Urban greening is a start. Encouraging aged-care providers to adopt green infrastructure will have benefits. But we should also consider reforms to planning systems and urban design to better protect older people who choose to age in place.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/112613/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/claudia-baldwin-248780">Claudia Baldwin</a>, Associate Professor, Urban Design and Town Planning, Sustainability Research Centre, <a href="https://theconversation.com/institutions/university-of-the-sunshine-coast-1068">University of the Sunshine Coast</a>; <a href="https://theconversation.com/profiles/jason-byrne-6066">Jason Byrne</a>, Professor of Human Geography and Planning, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a>, and <a href="https://theconversation.com/profiles/tony-matthews-234160">Tony Matthews</a>, Senior Lecturer in Urban and Environmental Planning, <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/how-do-we-save-ageing-australians-from-the-heat-greening-our-cities-is-a-good-start-112613">original article</a>.</em></p> </div>

Domestic Travel

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"Green cordial" water in Sydney harbour baffles residents

<p>A bay in Sydney Harbour has turned neon green, with authorities currently investigating the cause. </p> <p>Locals were baffled when they saw the bay along Hipwood Street in Kirribilli, near Milsons Park, turn bright green at about 3pm on Wednesday, with many calling the incident "unusual". </p> <p>Firefighters said they were  "alerted to a large spill of fluorescent green material flowing into the harbour".</p> <p>One local described the water as "green cordial" and said it resembled "radioactive stuff you see in superhero movies".</p> <p>NSW Fire and Rescue then conducted several tests and said the water is not toxic and is currently not harming the environment. </p> <p>The Fire and Rescue team are now trying to flush out the green substance, and said that the incoming rain should help turn the water colour back to normal. </p> <p>Another resident told 9News that they had seen green water in a stormwater drain at Anderson Park, along Clark Road, on Tuesday, before the green colour spread to the bay on Wednesday.</p> <p>Later in the afternoon, a North Sydney Council spokeswoman confirmed that were no major pollutants in the green water: “At this stage our engineers believe the substance is likely to be fluorescein, which is used as a dye for plumbing works. Fluorescein is a non-toxic substance and breaks down with UV light. The green colour is a feature that makes it easy to trace.” </p> <p>Green water was also spotted in Neutral Bay on Wednesday according to another local. </p> <p><em>Image: Nine</em></p>

Travel Trouble

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Tourists reveal the worst cities for pedestrians

<p dir="ltr">For many keen travellers, walking is the best way to explore a new city and take in everything a new destination has to offer. </p> <p dir="ltr">However, not every corner of the world is easily accessible by foot, with some cities prioritising cars and bikes over the humble pedestrian. </p> <p dir="ltr">Tourists on social media site Reddit have revealed the least pedestrian friendly cities they have encountered on their travels abroad, with one person asking in a travel forum: “In what city/country did you have the ‘worst experience’ as a pedestrian?”</p> <p dir="ltr"><strong>Cairo, Egypt</strong></p> <p dir="ltr">The largest city and capital of Egypt has left some pedestrians feeling distressed, with one person describing the city as “hell on foot”. </p> <p dir="ltr">One person wrote of the historic city, “Drivers often drive on the opposite side of the road and most don't seem to follow any rules. Plus we got hassled so much by people trying to make money off us when walking around the city. They would follow us and wouldn't leave us alone.”</p> <p dir="ltr">Another traveller added, “In Cairo, I spent so much money on taxis, the lack of sidewalks, being constantly harassed to buy stuff, the heat, the trash, the smell.”</p> <p dir="ltr"><strong>Hanoi, Vietnam</strong></p> <p dir="ltr">The capital city of Vietnam is home to 9 million people and 7 million motorbikes and scooters, making crossing the road a logistical nightmare for many, as lots of travellers pointed out. </p> <p dir="ltr">One person wrote, “Hanoi is by far the worst walking experience I ever could have imagined. Any sidewalks are literally covered with motorbikes or pop-up restaurant seating that they hide when the police come by since it's not allowed. You can't go a single block without having to walk into the extremely busy streets.”</p> <p dir="ltr">“To be fair, it does add to the experience and I would like to note it's a good city and great country, but I'm convinced there is no worse walking experience in a city.”</p> <p dir="ltr"><strong>Amsterdam, The Netherlands</strong></p> <p dir="ltr">While there are many walkable streets in Amsterdam in an attempt to cut down on streets overrun with cars, the city makes up for this traffic with a surplus of bicycles.</p> <p dir="ltr">One traveller wrote, “Amsterdam was stressful to me as a pedestrian. The bikes will run you down.  We stayed a little outside of the city centre so that probably exacerbated things as our daily walk to see the sights often shared the paths with cyclists on the faster parts of their commutes.”</p> <p dir="ltr">Another person said, “I'm from Southeast Asia and Amsterdam made me very anxious as a pedestrian.”</p> <p dir="ltr"><strong>The Philippines</strong></p> <p dir="ltr">The entire country of The Philippines was a sore spot with many keen travellers, as lots of tourists had issues crossing the busy roads. </p> <p dir="ltr">One person wrote, “Manila was my knee-jerk response. The Philippines is gorgeous and the people are so incredibly friendly, but trying to cross those massive roads (that have no crosswalks) is literally taking your life in your hands to play frogger.”</p> <p dir="ltr">Another agreed, saying “Crossing traffic in the [Philippines] should be a sport. Could've died so many times out there.”</p> <p dir="ltr">Another traveller wrote, “I once had to take a taxi just to cross the road because there was no way for pedestrians to do it.”</p> <p dir="ltr"><strong>Bali, Indonesia</strong></p> <p dir="ltr">Despite being a popular tourist destination for many, many claimed the Indonesian paradise does not cater to pedestrians. </p> <p dir="ltr">One person wrote, “Bali is barely walkable at all in touristy areas - no sidewalks or at 90 percent of places. And so much traffic.”</p> <p dir="ltr">Another agreed, writing, “Bali gets my vote too. In Ubud, I was constantly like, ‘Where's the footpath?’ Every building and shop seems to have its own makeshift strip of narrow disjointed tile, concrete or dirt, but most of the time, it's easier to walk on the road.”</p> <p dir="ltr"><em>Image credits: Shutterstock </em></p> <p> </p>

Travel Trouble

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“Hypocrite”: Hughesy's on-air clash with Greens leader

<p>Dave “Hughesy” Hughes had a fiery debate with Australian Greens Leader Adam Bandt about veganism on-air on<em> </em>The Fox’s <em>Fifi, Fev &amp; Nick</em>. </p> <p>Before Bandt appeared on the show, a clip played of Hughesy, who is a vegan, calling for the leader to "quit the party" after learning the Greens leader wasn't a vegan. </p> <p>He questioned how Bandt could advocate for climate action without adopting a plant-based lifestyle, and the Greens leader was brought onto the show to explain his stance. </p> <p>“So you are not a vegan?” Hughesy asked the politician. </p> <p>“I’m not….” replied Bandt. “I applaud those who are, I applaud those who have made the shift. I’ve been thinking about it …”</p> <p>Hughesy then loudly interjected “ … URGH, THINKING ABOUT IT?”</p> <p>The Greens leader replied: “I don’t have a good drop-dead reason, but I’ve been thinking about it, and I can probably give you three justifications for it.</p> <p>"Firstly, we’ve made big changes at home and basically only eat meat for special occasions, the rest of the time we’re vegan or vegetarian at home.”</p> <p>“…. THERE’S ONE WAY, ADAM, THERE’S ONE WAY …” the presenter yelled in response. </p> <p>Hughesy's co-star Fev then tried to make light of the situation and asked him:  “What are you doing Dave?"</p> <p>"Adam is doing the version of Leonardo DiCaprio and his private jet flying around the world while banging on about climate change, but you flew to Brisbane on the weekend,” he continued suggesting that Hughesy too was being a hypocrite by getting on a flight recently. </p> <p>“But I don’t bang on about it,” exclaimed Hughesy.</p> <p>“Adam is the leader of the Greens … it’s hypocritical! C’mon, you can do it, Adam, you can become a vegan! Be the change you want to see in the world, buddy!”</p> <p>Hughesy adopted the vegan lifestyle for his own health, but he has previously revealed that it comes with its challenges and his family were also not that enthusiastic about the change. </p> <p><em>Image: news.com.au/ Fifi, Fev &amp; Nick</em></p>

Food & Wine

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Tourists reveal the world’s best “non-mainstream” cities

<p dir="ltr">While many eager travellers head to a nation’s capital city when travelling abroad, others prefer to steer off the beaten track for a more authentic experience. </p> <p dir="ltr">A group of keen tourists discussed their favourite “non-mainstream” cities in a popular travel thread on Reddit, with eight destinations around the world coming out on top. </p> <p dir="ltr"><strong>Turin, Italy</strong></p> <p dir="ltr">Most travellers that head to Italy tend to stick to the main tourist-driven cities of Rome, Florence, Milan and Venice. </p> <p dir="ltr">However, according to one traveller, the city of Turin (also known as Torino) is “one of the best cities in the country and it gets ignored by most tourists.”</p> <p dir="ltr">One person wrote, “Great architecture, very walkable, fantastic museums, delicious regional dishes and stunning Alpine backdrop.”</p> <p dir="ltr">Another agreed, adding, “Torino is really great. [It] feels different to any other Italian city. [It's] also totally uncrowded even during peak season.”</p> <p dir="ltr"><strong>Oulu, Finland</strong></p> <p dir="ltr">Aside from the Finnish capital of Helsinki in the far south of the country, some travellers prefer to venture up north into colder climates away from the bustling city. </p> <p dir="ltr">One hotspot is the city of Oulu, which offers a more relaxed pace of life despite its harsh weather. </p> <p dir="ltr">One traveller wrote, “I really enjoyed Oulu in Finland. So much space between buildings, green trees everywhere, a nice beach to relax on and watch the sunset, [and] beautiful parks.”</p> <p dir="ltr">“To me, it looked like the ideal city to live in. I was there in July. I think winters can be harsh.”</p> <p dir="ltr"><strong>Ouray, Colorado, USA</strong></p> <p dir="ltr">Situated in the heart of the San Juan Mountains in southwest Colorado, Ouray is often referred to as the 'Switzerland of America', with many travellers in awe of its beauty. </p> <p dir="ltr">One person simply wrote, “Ouray is stunningly beautiful!” sharing their love for the quaint city. </p> <p dir="ltr"><strong>Nuremberg, Germany</strong> </p> <p dir="ltr">Germany’s most visited cities are usually Berlin and Munich, but Nuremberg also offers a unique glimpse into Germany’s history and culture. </p> <p dir="ltr">One traveller described the city as “amazing” while another said they “absolutely loved the place”. </p> <p dir="ltr">Another claimed that Nuremberg was “so beautiful, magical and fun” during wintertime that it “ruined Christmas for the rest of my life”.</p> <p dir="ltr"><strong>Townsville, Australia</strong></p> <p dir="ltr">When you think of coastal Aussie getaways, many think of Noosa or the Gold Coast as the best places to visit. </p> <p dir="ltr">However, others encouraged travellers to head to the “super-underrated” Townsville in northeastern Queensland instead.</p> <p dir="ltr">One traveller remarked that it has “great bars and restaurants”, adding, “It was a good base to get around the place. I found the locals friendly, [it] wasn't overrun with tourists like Cairns. My wife and I both thought it was a super-underrated place and we'll be back.”</p> <p dir="ltr"><strong>Khiva, Uzbekistan </strong></p> <p dir="ltr">The city of Khiva, locally pronounced 'Heevah', is more than 2,500 years old and is a keen holiday destination for history buffs. </p> <p dir="ltr">One traveller wrote of the charming city, “The old city inside the walls is so well preserved that it's like entering another time. Early morning and after dark, when the tourist market has closed, and the buses have left, makes for a magical experience. I've been to a lot of places in the world but will never forget the magic of that place.”</p> <p dir="ltr"><strong>Salta, Argentina</strong></p> <p dir="ltr">Located in the north of the country, Salta is “definitely not on the mainstream path”, but worth the journey.</p> <p dir="ltr">One tourist wrote, “The city itself isn't the most exciting but it's safe, the food is incredible, and it's the gateway to some of the most beautiful natural areas I've seen in my life.”</p> <p dir="ltr"><strong>Kastoria, Greece</strong></p> <p dir="ltr">Located in northern Greece in the region of Western Macedonia, Kastoria sits on the shore of Lake Orestiada and is surrounded by limestone mountains. </p> <p dir="ltr">One traveller fell in love with the Greek destination, writing, “This is the definition of a hidden gem. It's deep in northern Greece and on a peninsula jutting into the middle of a lake, so it's just this incredibly serene and picturesque setting. There's history on every street corner, too.”</p> <p dir="ltr"><em>Image credits: Shutterstock </em></p> <p> </p>

International Travel

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Olympian proposes in the City of Love

<p>US shot putter Payton Otterdahl is finally engaged to his longtime girlfriend Maddy Nilles after eight years together. </p> <p>In a heartwarming post shared to Instagram, the Olympian captured the exact moment he popped the question under the Eiffel Tower. </p> <p>"Meanwhile, in the City of Love..." he captioned the photo in the City of Love. </p> <p>"I love you forever, Maddy Nilles!" Otterdahl added with a red heart emoji.</p> <p>In another photo, the newly-engaged couple were pictured sharing a kiss under the iconic monument to celebrate the milestone. </p> <p>Nilles re-shared the post to her Instagram story with a wholesome message in French.</p> <p>"Je vous aime," she wrote, which means "I love you" in English.</p> <p>While Otterdahl just missed out on an Olympic medal in Paris as he placed fourth in the shot put, many congratulated him for taking home the best prize - a love that will "last a lifetime". </p> <p>"Congratulations!!" Team USA shot putter and Olympic silver medalist Joe Kovacs said. </p> <p>"A legendary weekend for you guys. Congrats, and cheers!" one fan wrote. </p> <p>"You just won your gold medal! It will last a lifetime!" another added. </p> <p>"You’re joking!!!! This is the best news!!! A legendary weekend for you guys. Congrats, and cheers!" wrote a third. </p> <p>The Team USA and USA Track and Field accounts have also celebrated the couple's engagement news in a joined Instagram post.</p> <p>"It's an Olympic proposal," they announced. "Congratulations, Payton and Maddy!"</p> <p><em>Images: Instagram</em></p> <p> </p>

Relationships

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New York City mocked for only just discovering wheelie bins

<p>New York City has been trolled online after discovering wheelie bins for the first time. </p> <p>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.</p> <p>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. </p> <p>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.</p> <p>He said “many people thought it was impossible” that these wheelie bins were going to be part of the city’s “trash revolution”.</p> <p>“We all have one unified dislike, and those are those pesky New York City rats,” Mr Adams said.</p> <p>“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.”</p> <p>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. </p> <p>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.</p> <p>“Oh my word! Are they seriously showing their constituents how to use a trash can?” wrote one person.</p> <p>“Huh, they don’t have wheelie bins? What century do they live in?” said a second.</p> <p>“How the hell is this revolutionary??” agreed another.</p> <p>“So they finally figured out putting your trash in piles on the sidewalk is not a good idea,” mocked someone else.</p> <p><em>Image credits: X (Twitter) </em></p>

Home & Garden

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Best cities to discover on foot revealed

<p dir="ltr">When it comes to travelling and exploring new places, there is no better way to experience everything a new city has to offer than just by walking around. </p> <p dir="ltr">By keeping on your feet rather than using public transport, you get the chance to explore more hidden corners of your destination and truly soak up the new culture, all while getting your steps in. </p> <p dir="ltr">That being said, there are definitely some cities that are easier to traverse on foot than others. </p> <p dir="ltr">But now, one company has put in the hard work to determine the 100 best cities around the world for travellers who want to walk their way to new experiences. </p> <p dir="ltr"><a href="https://www.guruwalk.com/">GuruWalk</a>, a company that offers free walking tours worldwide, has compiled the list based on booking and search data for 800 cities across 120 countries. </p> <p dir="ltr">In terms of countries as a whole, Spain topped the list with 28 cities appearing in the top 100, while Rome, Italy took out the top spot for most walkable city. </p> <p dir="ltr">Rome’s walkability is largely due to the location of the tourist hotspots, with the world-class attractions all located close to each other. </p> <p dir="ltr">GuruWalk comments, “The sheer number of monuments it hosts sometimes causes tourists to not even know where to start.”</p> <p dir="ltr">“So it’s not surprising that Rome hosts more guided tours than any other place.”</p> <p dir="ltr">Check out the entire top ten list below. </p> <p dir="ltr">10. Porto, Portugal </p> <p dir="ltr">9. London, England </p> <p dir="ltr">8. Amsterdam, The Netherlands</p> <p dir="ltr">7. Prague, Czech Republic</p> <p dir="ltr">6. Lisbon, Portugal </p> <p dir="ltr">5. Florence, Italy </p> <p dir="ltr">4. Madrid, Spain</p> <p dir="ltr">3. Barcelona, Spain</p> <p dir="ltr">2. Budapest, Hungary</p> <p dir="ltr" role="presentation">1. Rome, Italy</p> <p dir="ltr"><em>Image credits: Getty Images</em></p> <p> </p>

International Travel

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Most popular Aussie city to visit in 2024 revealed

<p>The most popular city in Australia for 2024 travellers has been revealed, with locals and international visitors alike all adding the capital city to their destination bucket lists. </p> <p>In new research commissioned by the Tourism and Transport Forum (TTF), Melbourne has shot to the top the list of most popular cities to travel this year, beating out Sydney, the Sunshine Coast and Adelaide for the top spot. </p> <p>In the TTF report, a sample of 2,000 travellers between the age of 18-65 revealed where they plan on visiting both domestically and abroad in 2024.</p> <p>While Queensland came out on top as the most popular state or territory to visit, followed by NSW and Victoria, Melbourne beat the other capital cities as the most sought after city across the country.</p> <p>“It’s not surprising more Australians are planning to head to Melbourne for a holiday this year, with its thriving music and arts scene and world-famous events year-round,” TTF CEO Margy Osmond told <a href="https://www.news.com.au/travel/travel-ideas/best-of-travel/australian-city-named-best-in-the-country-outweighing-sydney-and-brisbane/news-story/6e69272d37b62eada10b6bedf2bb88f5" target="_blank" rel="noopener"><em>news.com.au</em></a>.</p> <p>“Already this year Melbourne has hosted Taylor Swift and the Australian Open and will draw thousands more visitors for the upcoming Melbourne International Comedy Festival, Fringe Festival and much more.”</p> <p>Known for the delicious coffee, abundance of shopping options, thriving food scene and bustling culture and nightlife, Melbourne has long been a hotspot destination for many travellers. </p> <p>The crown is another win for Victoria, with the city of Bendigo walking away with the top prize of ‘best town’ in the annual <a href="https://oversixty.com.au/travel/domestic-travel/why-disbelief-as-best-aussie-towns-crowned-for-2024" target="_blank" rel="noopener">Wotif travel awards</a>.</p> <p><em>Image credits: Getty Images </em></p>

Domestic Travel

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"Other cities will follow": Big trouble ahead for SUV owners

<p>Paris residents have voted to charge SUVs triple the cost of parking compared to standard sized cars in a bid to tackle air pollution and improve safety. </p> <p>54.6 per cent of residents voted to pass the plan, with the new parking tariffs expected to start in September. </p> <p>The price increase will apply to on-street parking for vehicles with combustion or hybrid engines weighing more than 1.6 tonnes and electric vehicles weighing over two tonnes.</p> <p>The change means that the vehicles will pay €18 (A$29.69) an hour for parking in the centre of Paris, up from €6 (A$9.90), and €12 (A$19.79) an hour in the rest of the city, up from €4 (A$6.60).</p> <p>"Parisians have made a clear choice … other cities will follow,” Paris mayor Anne Hidalgo said. </p> <p>Experts are onboard with the move and believe the Australia should do the same thing. </p> <p>Urban access consultant and author of the book<em> Rethinking Parking</em> David Mepham said that the move could help improve safety as: “SUVs are actually some of the most unsafe vehicles on the road for pedestrians with a fatality rate that is significantly higher than other vehicles.”</p> <p>“The injury and fatality rate should be a concern in highly pedestrianised areas such as city centres.”</p> <p>In 2022 alone, SUV and light commercial vehicles made up 76.8 per cent of car sales, coming in eighth on the top 10 vehicle sales according to the Federal Chamber of Automotive Industries.</p> <p>With spaces in the cities limited, Mepham added: “If you’ve got a larger car you should expect to pay more for that, you should pay for what you use.”</p> <p>Standards Australia has recently proposed to increase the size of off-street parking spaces by 20 centimetres in Australia, from 5.4 metres to 5.6 metres, which would make it easier for larger vehicles to park, but would limit car spaces. </p> <p>Executive director of the Australia Institute, Richard Dennis also said that SUV owners need to face the consequences of owning a larger vehicle. </p> <p>“If we want to drive much bigger cars, are we going to widen all of our city streets, are we going to have less car parking spaces?” he said.</p> <p>“Because if we want to drive these cars we need to own the consequences.”</p> <p>Marion Terrill, an independent transport expert, also agreed that higher parking fees for large vehicles are “absolutely reasonable.”</p> <p>“If you want more of it you can pay more, it’s the same principle as paying for parking at all," she said. </p> <p><em>Image: Getty</em></p>

Travel Trouble

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The art of ‘getting lost’: how re-discovering your city can be an antidote to capitalism

<p><em><a href="https://theconversation.com/profiles/stephen-dobson-1093706">Stephen Dobson</a>, <a href="https://theconversation.com/institutions/cquniversity-australia-2140">CQUniversity Australia</a></em></p> <p>Do you remember what it was like to discover the magic of a city for the first time? Do you remember the noises, smells, flashing lights and pulsating crowds? Or do you mostly remember cities through the screen of your phone?</p> <p>In 1967, French philosopher and filmmaker Guy Debord <a href="https://files.libcom.org/files/The%20Society%20of%20the%20Spectacle%20Annotated%20Edition.pdf">publicised the need</a> to move away from living our lives as bystanders continually tempted by the power of images. Today, we might see this in a young person flicking from one TikTok to the next – echoing the hold images have on us. But adults aren’t adverse to this window-shopping experience, either.</p> <p>Debord notes we have a tendency to observe rather than engage. And this is to our detriment. Continually topping-up our image consumption leaves no space for the unplanned – the reveries to break the pattern of an ordered life.</p> <p>Debord was a member of a group called the <a href="https://www.britannica.com/topic/Situationist-International">Situationist International</a>, dedicated to new ways we could reflect upon and experience our cities. Active for about 15 years, they believed we should experience our cities as an act of resistance, in direct opposition to the (profit-motivated) capitalistic structures that demand our attention and productivity every waking hour.</p> <p>More than 50 years since the group dissolved, the Situationists’ philosophy points us to a continued need to attune ourselves – through our thoughts and senses – to the world we live in. We might consider them as early eco-warriors. And through better understanding their philosophy, we can develop a new relationship with our cities today.</p> <h2>Understanding the ‘situation’</h2> <p>The Situationist International movement was <a href="https://www.jstor.org/stable/j.ctt183p61x">formed</a> in 1957 in Cosio di Arroscia, Italy, and became active in several European countries. It brought together radical artists inspired by spontaneity, experimentalism, intellectualism, protest and hedonism. Central figures included Danish artist <a href="https://museumjorn.dk/en/">Asger Jorn</a>, French novelist <a href="https://mitpress.mit.edu/author/michele-bernstein-10219/">Michèle Bernstein</a> and Italian musician and composer <a href="https://en.wikipedia.org/wiki/Walter_Olmo">Walter Olmo</a>.</p> <p>The Situationists were driven by a <a href="https://encyclopedia.pub/entry/34141">libertarian form of Marxism</a> that resisted mass consumerism. One of the group’s early terms was “unitary urbanism”, which sought to join avant-garde art with the critique of mass production and technology. They rejected “urbanism’s” conventional emphasis on function, and instead thought about art and the environment as inexorably interrelated.</p> <p>By rebelling against the invasiveness of consumption, the Situationists proposed a turn towards artistically-inspired individuality and creativity.</p> <h2>Think on your own two feet</h2> <p>According to the 1960 <a href="https://hts3.files.wordpress.com/2010/12/situationist-international-manifesto.pdf">Situationist Manifesto</a> we are all to be artists of our own “situations”, crafting independent identities as we stand on our own two feet. They believed this could be achieved, in part, through “<a href="https://www.tate.org.uk/art/art-terms/p/psychogeography#:%7E:text=Psychogeography%20describes%20the%20effect%20of,emotions%20and%20behaviour%20of%20individuals">psychogeography</a>”: the idea that geographical locations exert a unique psychological effect on us.</p> <p>For instance, when you walk down a street, the architecture around you may be deliberately designed to encourage a certain kind of experience. Crossing a vibrant city square on a sunny morning evokes joy and a feeling of connection with others. There’s also usually a public event taking place.</p> <p>The Situationists valued drift, or <em>dérive</em> in French. This alludes to unplanned movement through a landscape during journeys on foot. By drifting aimlessly, we unintentionally redefine the traditional rules imposed by private or public land owners and property developers. We make ourselves open to the new unexpected and, in doing so, are liberated from the shackles of everyday routine.</p> <p>In <a href="https://link.springer.com/book/10.1007/978-981-10-8100-2">our research</a>, my colleagues and I consider cities as places in which “getting lost” means exposing yourself to discovering the new and taken-for-granted.</p> <h2>Forge your own path</h2> <p>By understanding the Situationists – by looking away from our phones and allowing ourselves to get lost – we can rediscover our cities. We can see them for what they are beneath the blankets of posters, billboards and advertisements. How might we take back the image and make it work for us?</p> <p>The practise of geo-tagging images on social media, and sharing our location with others, could be considered close to the spirit of the Situationists. Although it’s often met with claims of <a href="https://www.nationalgeographic.com/travel/article/when-why-not-to-use-geotagging-overtourism-security">over-fuelling tourism</a> (especially regarding idyllic or otherwise protected sites), geo-tagging could <a href="https://www.melaninbasecamp.com/trip-reports/2019/5/1/five-reasons-why-you-should-keep-geotagging">inspire us</a> to actively seek out new places through visiting the source of an image.</p> <p>This could lead to culturally respectful engagement, and new-found respect for the rights of traditional custodians as we experience their lands in real life, rather than just through images on our phones.</p> <p>Then there are uniquely personal and anarchistic forms of resistance, wherein we can learn about the world around us by interweaving ourselves with our histories. In doing so we offer a new meaning to a historical message, and a new purpose. The Situationists called this process <em><a href="https://www.theartstory.org/movement/situationist-international/">détournement</a></em>, or hijacking.</p> <p>For instance, from my grandfather I inherited a biscuit tin of black and white photographs I believe were taken in the 1960s. They showed images of parks and wildlife, perhaps even of the same park, and cityscapes of London with people, streets and buildings.</p> <p>I have spent many hours wandering the London streets tracking down the exact places these images were snapped. I was juxtaposing past with present, and experiencing both continuity and change in the dialogues I had with my grandfather. In this way, I used images to augment (rather than replace) my lived experience of the material world.</p> <p>Urban art installations can also be examples of detournment as they make us re-think everyday conceptions. <a href="https://www.cityartsydney.com.au/artwork/forgotten-songs/">Forgotten Songs</a> by Michael Hill is one such example. A canopy of empty birdcages commemorates the songs of 50 different birds once heard in central Sydney, but which are now lost due to habitat removal as a result of urban development.</p> <p>There are also a number of groups, often with a strong environmental or civic rights focus, that partake in detournment. <a href="https://popularresistance.org/dancing-revolution-how-90s-protests-used-rave-culture-to-reclaim-the-streets/">Reclaim the Streets</a> is a movement with a long history in Australia. The group advocates for communities having ownership of and agency within public spaces. They may, for instance, “invade” a highway to throw a “<a href="https://pasttenseblog.files.wordpress.com/2022/02/road-rave.pdf">road rave</a>” as an act of reclamation.</p> <figure><iframe src="https://www.youtube.com/embed/bUL0C_T-Sqk?wmode=transparent&amp;start=999" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <p>As French avant-garde philosopher <a href="https://www.themarginalian.org/2014/07/24/the-poetics-of-reverie-gaston-bachelard/">Gaston Bachelard</a> might have put it, when we’re bombarded by images there is no space left to daydream. We lose the opportunity to explore and question the world capitalism serves us through images.</p> <p>Perhaps now is a good time to set down the phone and follow in the Situationists’ footsteps. <!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/221606/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><a href="https://theconversation.com/profiles/stephen-dobson-1093706"><em>Stephen Dobson</em></a><em>, Professor and Dean of Education and the Arts, <a href="https://theconversation.com/institutions/cquniversity-australia-2140">CQUniversity Australia</a></em></p> <p><em>Image credits: Getty Images </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/the-art-of-getting-lost-how-re-discovering-your-city-can-be-an-antidote-to-capitalism-221606">original article</a>.</em></p>

Travel Tips

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Eating leafy greens could be better for oral health than using mouthwash

<p><em><a href="https://theconversation.com/profiles/mia-cousins-burleigh-1201153">Mia Cousins Burleigh</a>, <a href="https://theconversation.com/institutions/university-of-the-west-of-scotland-1385">University of the West of Scotland</a> and <a href="https://theconversation.com/profiles/siobhan-paula-moran-1506183">Siobhan Paula Moran</a>, <a href="https://theconversation.com/institutions/university-of-the-west-of-scotland-1385">University of the West of Scotland</a></em></p> <p>Over half the adult population in the <a href="https://pubmed.ncbi.nlm.nih.gov/26052472">UK and US</a> have gum disease. Typical treatments include <a href="https://www.nature.com/articles/s41598-020-61912-4">mouthwash</a> and in severe cases, <a href="https://www.magonlinelibrary.com/doi/abs/10.12968/vetn.2017.8.10.542">antibiotics</a>. These treatments have side effects, such as dry mouth, the development of <a href="https://pubmed.ncbi.nlm.nih.gov/30967854/">antimicrobial resistance</a> and increased <a href="https://www.nature.com/articles/s41598-020-61912-4">blood pressure</a>.</p> <p>But research has indicated that a molecule called <a href="https://www.nature.com/articles/s41598-020-69931-x">nitrate</a>, which is found in leafy green vegetables, has fewer side effects and offers greater benefits for oral health. And it could be used as a natural alternative for treating oral disease.</p> <p>Inadequate brushing and flossing leads to the build up of <a href="https://www.nature.com/articles/s41598-020-69931-x">dental plaque</a>, a sticky layer of bacteria, on the surface of teeth and gums. Plaque causes tooth decay and gum disease. Sugary and acidic foods, dry mouth, and smoking can also contribute to bad breath, tooth decay, and gum infections.</p> <p>The two main types of gum disease are gingivitis and periodontitis. <a href="https://www.spandidos-publications.com/10.3892/etm.2019.8381">Gingivitis</a> causes redness, swelling and bleeding of the gums. <a href="https://www.spandidos-publications.com/10.3892/etm.2019.8381">Periodontitis</a> is a more advanced form of gum disease, causing damage to the soft tissues and bones supporting the teeth.</p> <p>Periodontal disease can therefore, lead to tooth loss and, when bacteria from the mouth enter the bloodstream, can also contribute to the development of <a href="https://www.nature.com/articles/bdjteam2015163">systemic disorders</a> such as cardiovascular disease, dementia, diabetes and rheumatoid arthritis.</p> <h2>Leafy greens may be the secret</h2> <p>Leafy greens and root vegetables are bursting with <a href="https://www.sciencedirect.com/science/article/pii/S2666149723000312">vitamins, minerals, and antioxidants</a> – and it’s no secret that a diet consisting of these vegetables is crucial for maintaining a healthy weight, boosting the immune system, and preventing <a href="https://journals.sagepub.com/doi/10.1177/2048004016661435">heart disease, cancer and diabetes.</a> The multiple health benefits of leafy greens are partly because spinach, lettuce and beetroots are brimming with <a href="https://www.nature.com/articles/s41598-020-69931-x">nitrate</a>, which can be reduced to nitric oxide by nitrate-reducing bacteria inside the mouth.</p> <figure><iframe src="https://www.youtube.com/embed/7zrRlMGeBes?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe><figcaption><span class="caption">Popeye knew a thing or two about the health benefits of eating leafy greens. Boomerang Official, 2017.</span></figcaption></figure> <p>Nitric oxide is known to <a href="https://www.sciencedirect.com/science/article/abs/pii/S0006295222004191">lower blood pressure</a> and improve <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0243755#:%7E:text=Nitrate%2Drich%20beetroot%20juice%20offsets,healthy%20male%20runners%20%7C%20PLOS%20ONE">exercise performance</a>. However, in the mouth, it helps to prevent the overgrowth of bad bacteria and reduces <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0243755#:%7E:text=Nitrate%2Drich%20beetroot%20juice%20offsets,healthy%20male%20runners%20%7C%20PLOS%20ONE">oral acidity</a>, both of which can cause gum disease and tooth decay.</p> <p>As part of our research on nitrate and oral health, <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0243755#:%7E:text=Nitrate%2Drich%20beetroot%20juice%20offsets,healthy%20male%20runners%20%7C%20PLOS%20ONE">we studied competitive athletes</a>. <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9839431/">Athletes are prone to gum disease</a> due to high intake of carbohydrates – which can cause inflammation of the gum tissues – stress, and dry mouth from breathing hard during training.</p> <p>Our study showed that beetroot juice (containing approximately 12 <a href="https://www.nursingtimes.net/students/an-easy-guide-to-mmols-09-02-2012/">millimole</a> of nitrate) protected their teeth from acidic sports drinks and carbohydrate gels during exercise – suggesting that nitrate could be used as a prebiotic by athletes to reduce the risk of tooth decay.</p> <p>Nitrate offers a lot of promise as an oral health <a href="https://www.nature.com/articles/s41598-020-69931-x">prebiotic</a>. Good oral hygiene and a nitrate rich diet could be the key to a healthier body, a vibrant smile and disease-free gums. This is good news for those most at risk of oral health deterioration such as <a href="https://www.news-medical.net/health/Periodontitis-and-Pregnancy.aspx">pregnant women</a>, and <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8771712/">the elderly</a>.</p> <p>In the UK, antiseptic mouthwashes containing <a href="https://www.nature.com/articles/s41598-020-61912-4">chlorhexidine</a> are commonly used to treat dental plaque and gum disease. Unfortunately, these mouthwashes are a blunderbuss approach to oral health, as they indiscriminately remove both good and bad bacteria and increase oral acidity, which can cause disease.</p> <p>Worryingly, early research also indicates that chlorhexidine may contribute to <a href="https://pubmed.ncbi.nlm.nih.gov/30967854/">antimicrobial resistance</a>. Resistance occurs when bacteria and fungi survive the effects of one or more <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4768623/">antimicrobial drugs</a> due to repeated exposure to these treatments. Antimicrobial resistance is a <a href="https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(21)02724-0/fulltext">global health concern</a>, predicted to cause 10 million deaths yearly by the year 2050.</p> <p>In contrast, dietary nitrate is more targeted. Nitrate eliminates disease-associated bacteria, reduces oral acidity and creates a balanced <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2944498/">oral microbiome</a>. The oral microbiome refers to all the microorganisms in the mouth. Nitrate offers exciting potential as an <a href="https://www.nature.com/articles/s41598-020-69931-x">oral health prebiotic</a>, which can be used to prevent disease onset or limit disease progression.</p> <h2>How many leafy greens for pearly whites?</h2> <p>So how much should we consume daily? As a rule of thumb, a generous helping of spinach, kale or beetroot at mealtimes contains about 6-10 mmol of nitrate and offers immediate health benefits.</p> <p>Work we have done with our collaborators has shown that treating <a href="https://www.nature.com/articles/s41598-020-69931-x">plaque samples</a> from periodontal disease patients with 6.5 mmol of nitrate increased healthy bacteria levels and reduced acidity.</p> <p>For example, consuming <a href="https://aap.onlinelibrary.wiley.com/doi/full/10.1002/JPER.20-0778">lettuce juice</a> for two weeks reduced gum inflammation and increased healthy bacteria levels in patients with gum disease.</p> <p>Growing evidence suggests that nitrate is a cornerstone of oral health. Crunching on a portion of vegetables at mealtimes can help to prevent or treat oral disease and keeps the mouth fresh and healthy.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/221181/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><a href="https://theconversation.com/profiles/mia-cousins-burleigh-1201153"><em>Mia Cousins Burleigh</em></a><em>, Lecturer, School of Health and Life Sciences, <a href="https://theconversation.com/institutions/university-of-the-west-of-scotland-1385">University of the West of Scotland</a> and <a href="https://theconversation.com/profiles/siobhan-paula-moran-1506183">Siobhan Paula Moran</a>, PhD candidate, School of Health and Life Sciences, <a href="https://theconversation.com/institutions/university-of-the-west-of-scotland-1385">University of the West of Scotland</a></em></p> <p><em>Image credits: Shutterstock</em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/eating-leafy-greens-could-be-better-for-oral-health-than-using-mouthwash-221181">original article</a>.</em></p>

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The most welcoming cities in the world revealed

<p>Travel experts at booking.com have shared the top ten most welcoming cities in the world for 2024. </p> <p>In their 12th edition of of the Traveller Review Awards, booking.com shared their picks for the most inviting countries, giving eager travellers new destinations to add to their 2024 holiday bucket list. </p> <p>To determine what cities made the list, nooking.com used more than 309 million verified customer reviews from their site, with the frontrunners of the list boasting exceptional hospitality in all areas. </p> <p>Coming in at the coveted first place is Arraial d’Ajuda in Brazil: a charming beach town known for its calm and serene atmosphere.</p> <p>According to Booking.com’s report, Arraial d’Ajuda is the perfect destination for 67% of travellers who want to rest and recharge when traveling. </p> <p>One small Aussie town made the list, with Daylesford, Victoria coming in at the number four spot. </p> <p>The sleepy but lovely town in the foothills of the Great Dividing Range offers plenty of nature nearby to explore for those looking to switch off. </p> <p>With classic Aussie pubs, great local food, fun shops to explore, and welcoming residents, it's an ideal weekend getaway spot.</p> <p>Check out the entire top 10 list below. </p> <p>1. Arraial d’Ajuda, Brazil</p> <p>2. Ermoupoli, Greece</p> <p>3. Viana do Castelo, Portugal</p> <p>4. Daylesford, Australia</p> <p>5. Grindelwald, Switzerland</p> <p>6. Moab, United States</p> <p>7. Uzès, France</p> <p>8. Mazatlán, Mexico</p> <p>9. Jaisalmer, India</p> <p>10. Fujikawaguchiko, Japan</p> <p><em>Image credits: Getty Images / Shutterstock</em></p>

International Travel

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Sex And The City star dies aged 93

<p><em>Sex And The City </em>star Frances Sternhagen has died aged 93.</p> <p>The actress is known for her remarkable career, both on the stage and on-screen, with seven Tony Award nominations, passed away peacefully in her home on Monday night. </p> <p>Her representative, Sarah Fargo, announced the news to CNN on behalf of Sternhagen's family.</p> <p>“It is with great sadness we share the news that our dear mother, actress Frances Sternhagen, died peacefully of natural causes in New Rochelle, NY, on November 27, 2023 at the age of 93,” she told the publication. </p> <p>“She is survived by her six children, nine grandchildren, and two great-grandchildren.</p> <p>“A celebration of her remarkable career and life is planned for mid-January, near her 94th birthday. We continue to be inspired by her love and life.”</p> <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-captioned="" data-instgrm-permalink="https://www.instagram.com/p/C0OhBNduiXt/?utm_source=ig_embed&amp;utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/p/C0OhBNduiXt/?utm_source=ig_embed&amp;utm_campaign=loading" target="_blank" rel="noopener">A post shared by John Carlin (@wassadamo)</a></p> </div> </blockquote> <p><span style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;">Sternhagen's </span>son John Carlin took to Instagram to pay tribute to his late mum on Wednesday. </p> <p>“Frannie. Mom. Frances Sternhagen,” he began the post, with a series of pictures of the actress throughout her career. </p> <p>“On Monday night, Nov 27, she died peacefully at her home, a month and a half shy of her 94th birthday. I will post more soon but for now I just want to give thanks for the remarkable gift of an artist and human being that was Frances Sternhagen.</p> <p>“She was beloved by many. I’m very lucky I was able to call her my mom, my friend, my song and dance partner.</p> <p>“We were together last week, and we spoke Monday afternoon, said how much we loved and missed one another.</p> <p>“I was about to board a plane for London when I got the news, and am there now.</p> <p>“Set to perform some new songs (one of which was inspired by her) this weekend. She always encouraged my writing, and enjoyed my singing. I’ll fly back very early the next day.</p> <p>“Fly on, Frannie. The curtain goes down on a life so richly, passionately, humbly and generously lived. 🙏🏻❤️.”</p> <p>Sternhagen played the role of Bunny MacDougal, Trey's overbearing mother in <em>Sex and The City, </em>between 2000-2002. </p> <p>In the early 1990s she played Cliff Clavin’s mother Esther on <em>Cheers, </em>and was nominated for the Primetime Emmy Award twice, with the third being for her role as Bunny. </p> <p>Aside from her work on screen, the actress was also a decorated stage performer, making her debut on broadway in 1955 at just 25-years-old. </p> <p><em>Images: Instagram</em></p>

Caring

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Debate sparked over list of top 100 cities on the planet

<p>The best 100 cities on the planet have been revealed, with three Aussie cities making the final list. </p> <p>The list was compiled by as part of an annual report by <a href="https://www.worldsbestcities.com" target="_blank" rel="noopener">Resonance Consultancy</a>, who rated major capital cities on three main factors: liveability, lovability and prosperity, with dozens of factors taken into account.</p> <p>These include educational attainment, GDP per capita, poverty rate, the number of quality restaurants, shops and nightclubs, walkability, the number of mapped bike routes, quality parks and museums, as well as ratings from TripAdvisor and Google. </p> <p>The top ten chart features four cities on the Asian continent, four in Europe and two in the U.S.</p> <p>Sydney, Melbourne and Brisbane were all featured in the list, coming in at numbers 31, 35 and 57 respectively.</p> <p>Taking out the number one spot this year is London, dubbed the "capital of capitals" that "reigns over all global cities" as the best metropolis in the world. </p> <p>The study proclaims it as the most liveable and the most lovable mecca, solidified by its winning culture and education attainment.</p> <p>The report concludes, "Despite crippling Covid lockdowns and economic devastation. Despite Brexit. Despite a war in Europe. The city is more indomitable and part of the global discourse than ever. From the Queen's death, to last autumn's chaotic drama at 10 Downing Street that finally calmed down with Rishi Sunak becoming prime minister, only to take heavy local election losses this spring, London is rarely quiet these days."</p> <p>Here's the full list of top 100 cities in the world.</p> <p> 1 - London, England </p> <p>2 - Paris, France</p> <p>3 - New York, USA</p> <p>4 - Tokyo, Japan</p> <p>5 - Singapore</p> <p>6 - Dubai, United Arab Emirates</p> <p>7 - San Francisco, USA</p> <p>8 - Barcelona, Spain</p> <p>9 - Amsterdam, Netherlands</p> <p>10 - Seoul, South Korea</p> <p>11 - Rome, Italy </p> <p>12 - Prague, Czechia </p> <p>13 - Madrid, Spain </p> <p>14 - Berlin, Germany</p> <p>15 - Los Angeles, USA</p> <p>16 - Chicago, USA</p> <p>17 - Washington, D.C., USA</p> <p>18 - Beijing, China </p> <p>19 - Istanbul, Turkey </p> <p>20 - Dublin, Ireland</p> <p>21 - Vienna, Austria </p> <p>22 - Milan, Italy </p> <p>23 - Toronto, Canada</p> <p>24 - Boston, USA</p> <p>25 - Abu Dhabi, United Arab Emirates </p> <p>26 - Budapest, Hungary </p> <p>27 - São Paulo, Brazil</p> <p>28 - Riyadh, Saudi Arabia</p> <p>29 - Stockholm, Sweden </p> <p>30 - Munich, Germany</p> <p>31 - Melbourne, Australia </p> <p>32 - Lisbon, Portugal </p> <p>33 - Zürich, Switzerland</p> <p>34 - Seattle, USA</p> <p>35 - Sydney, Australia </p> <p>36 - Doha, Qatar</p> <p>37 - Brussels, Belgium </p> <p>38 - San Jose, USA</p> <p>39 - Bangkok, Thailand</p> <p>40 - Warsaw, Poland </p> <p>41 - Copenhagen, Denmark </p> <p>42 - Taipei, Taiwan </p> <p>43 - Austin, USA</p> <p>44 - Oslo, Norway </p> <p>45 - Osaka, Japan </p> <p>46 - Hong Kong, China </p> <p>47 - Tel Aviv, Israel </p> <p>48 - Athens, Greece</p> <p>49 - Frankfurt, Germany</p> <p>50 - Vancouver, Canada </p> <p>51 - San Diego, USA</p> <p>52 - Orlando, USA</p> <p>53 - Helsinki, Finland </p> <p>54 - Miami, USA</p> <p>55 - Buenos Aires, Argentina </p> <p>56 - Hamburg, Germany </p> <p>57 - Brisbane, Australia </p> <p>58 - Kuwait, Kuwait</p> <p>59 - Las Vegas, USA</p> <p>60 - Montreal, Canada </p> <p>61 - Glasgow, Scotland</p> <p>62 - Shanghai, China </p> <p>63 - Rio de Janeiro, USA</p> <p>64 - Auckland, New Zealand </p> <p>65 - Atlanta, USA</p> <p>66 - Houston, USA</p> <p>67 - Busan, South Korea</p> <p>68 - Philadelphia, USA</p> <p>69 - Naples, Italy </p> <p>70 - Denver, USA</p> <p>71 - Nashville, USA</p> <p>72 - Manchester, England </p> <p>73 - Dallas, USA</p> <p>74 - Liverpool, England</p> <p>75 - Minneapolis, USA</p> <p>76 - Mexico City, Mexico</p> <p>77 - Minsk, Belarus </p> <p>78 - Lyon, France </p> <p>79 - Portland, USA</p> <p>80 - Rotterdam, Netherlands </p> <p>81 - Bogotá, Colombia</p> <p>82 - Kraków, Poland</p> <p>83 - Valencia, Spain</p> <p>84 - Santiago, Chile </p> <p>85 - Birmingham, England</p> <p>86 - New Orleans, USA</p> <p>87 - Bucharest, Romania</p> <p>88 - Leeds, England</p> <p>89 - Muscat, Oman </p> <p>90 - Ottawa, Canada </p> <p>91 - Cologne, Germany </p> <p>92 - Charlotte, USA</p> <p>93 - Calgary, Canada </p> <p>94 - Nagoya, Japan  </p> <p>95 - Düsseldorf, Germany </p> <p>96 - Hanoi, Vietnam</p> <p>97 - Gothenburg, Sweden </p> <p>98 - Sapporo, Japan</p> <p>99 - Bilbao, Spain </p> <p>100 - Baltimore, USA</p> <p><em>Image credits: Getty Images </em></p>

International Travel

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Aussie grandma and former Greens candidate jailed in Japan claims she was scammed

<p>Donna Nelson, a 57-year-old Perth grandmother, has found herself entangled in a nightmarish situation in a Japanese prison, accused of a crime she vehemently denies.</p> <p>Nelson, an Aboriginal health advocate and former Greens candidate, has been incarcerated for nearly a year without a trial date set, facing allegations of attempting to smuggle two kilograms of meth into Japan. However, her plight is not as straightforward as it may seem, and her family and legal team are tirelessly fighting to clear her name.</p> <p>The ordeal began on January 4, when Nelson was arrested at Narita Airport in Tokyo. Authorities claimed to have discovered drugs concealed within a false compartment in her luggage. According to the prosecution, a customs officer suspected her of acting suspiciously. But the narrative has taken a complex turn as Nelson's defence team unveiled a shocking revelation: she alleges she was deceived and manipulated by a Nigerian scammer who had groomed her for two years.</p> <p>Since her arrest, Nelson has been confined to Chibu prison, located an hour outside Tokyo. Her living conditions are appalling; she spends 23 hours a day isolated in her cell, showers are allowed only every three days, and communication with other inmates and visitors is strictly prohibited. This form of treatment is a reflection of Japan's infamous "hostage justice" strategy, aimed at coercing confessions from detainees.</p> <p>The only individuals granted access to Nelson are her lawyers, Australian embassy representatives, and a pastor. Legal representatives have identified a significant issue with translation throughout the case, and it could very well hinge on an inaccurate translation by the customs officer at the time of her arrest.</p> <p>Rie Nishida from Shinjuku International Law Firm, one of Nelson's lawyers, explained, "The main evidence from the prosecution is mainly a customs officer who said she acted suspiciously. There's a lot of mistranslation that's also the difficulty in this case."</p> <p>This mistranslation issue is not trivial; it extends to the messages exchanged between Nelson and the man she believed she had a romantic connection with, who ultimately turned out to be a scammer.</p> <p>Matthew Owens, another member of the legal team and a translator for the case, noted, "Some of them were completely wrongly translated, so we had to re-translate those messages and submit them back to the prosecutor."</p> <p>Nelson remains steadfast in her conviction that she is innocent of the accusations against her. Her lawyer,  Owens, relayed her message, saying, "Donna wants to say that she is going to be able to prove her innocence, she's 100 per cent confident of that, and she wants everyone in Australia and the world to know she is innocent."</p> <p>If found guilty, Nelson could face a harrowing 20-year sentence in a Japanese prison, a terrifying prospect for both her and her family. Her five daughters and grandchildren are distraught, but they are not giving up the fight to prove her innocence. They believe they have evidence to substantiate the claim that she was scammed and unjustly accused.</p> <p><em>Image: Australian Greens</em></p>

Legal

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Surprising city dubbed Australia's coolest place

<p>An American publication has given the title of "Australia's coolest city" to a surprising contender.</p> <p>While most might think the crown would go to either Sydney or Melbourne, it seems the <em>Wall Street Journal</em> believes Adelaide is the coolest capital city in Australia.</p> <p><em>WSJ</em> reporter Emily Pennington penned the surprising winner of the title, saying the South Australian capital has more on offer to travellers than you might think. </p> <p>"Sydney and Melbourne might pull in more tourists but Adelaide has quietly made its name as a go-to escape for gastronomes and nature lovers," she wrote. </p> <p>Pennington cited the "compact" nature of the city being a major selling point, making it easy for travellers to explore all the best that Adelaide has to offer.</p> <p>She wrote, "Despite such a compact footprint, the one-square-mile city centre is full of shops and restaurants. Beyond that, leafy suburbs give way to the Adelaide Hills, where koalas roam, and to the sea."</p> <p>But what really tips Adelaide over the edge on the "cool" scale, according to the article, is its foodie scene, thanks to its proximity to both the ocean and lush valleys of locally-grown produce.</p> <p>"Best of all it's supremely easy to wander Adelaide by foot, stumbling upon discoveries while enjoying long, post-food-coma strolls."</p> <p>Predictably, the feedback on the article has been mixed.</p> <p>"It's a good place if you like wine and or want to retire but that's about it," one person wrote on Instagram.</p> <p>However, one Adelaide native who has been residing in New York for over two decades defended their hometown, writing, "I'll refer to this article next time a fellow Aussie says 'I'm sorry' when I say I'm originally from Adelaide."</p> <p><em>Image credits: Getty Images</em></p>

Domestic Travel

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Why does my hair turn green from the swimming pool?

<p><em><a href="https://theconversation.com/profiles/magdalena-wajrak-1432339">Magdalena Wajrak</a>, <a href="https://theconversation.com/institutions/edith-cowan-university-720">Edith Cowan University</a></em></p> <p>If you are a blonde like me and enjoy laps in a swimming pool, you may have noticed your hair acquires a green tint after frequent swims in chlorinated water.</p> <p>This happens to both bleached and natural blondes. In fact, the green tinge happens to everyone, but it’s less visible on dark hair and those whose hair isn’t damaged by chemical treatments such as bleaching.</p> <p>But what exactly causes this green discoloration, and what can we do about it? Most of us blame the chlorine in the pool water. However, although chlorine does play a part, it is not the main culprit.</p> <h2>Which chemicals in the pool turn the hair green?</h2> <p>The element to blame for the green staining of hair is copper.</p> <p>The main source of copper is copper sulfate (CuSO₄), a compound added to swimming pools to prevent the growth of algae. <a href="https://www.sciencedirect.com/science/article/pii/S1568988320301803?via%3Dihub">Contact with algae</a> can cause skin irritation and respiratory issues, and ingesting water with algae can lead to serious gastrointestinal problems. Only a small amount (around 0.5mg per litre or 0.5 parts per million) of copper sulfate is needed to prevent algal growth.</p> <p>However, copper can also enter swimming pools through the corrosion of water pipes, so concentrations may be higher in some pools.</p> <p>Copper sulfate crystals are greenish-blue in colour. So, when hair comes into contact with copper ions – a positively charged variant of a copper atom with extra electrons – those ions get absorbed by the hair and cause the greenish hue.</p> <p>Scientists were fascinated by the green “pool hair” phenomenon as far back as the 1970s, so we actually have research data on copper being the cause.</p> <p>One very <a href="https://jamanetwork.com/journals/jamadermatology/article-abstract/538197">interesting study in 1978</a> performed experiments by immersing hair samples into water containing different concentrations of copper ions, chlorine and various pH values (neutral and basic). Their results showed hair exposed to free copper ions does turn green.</p> <p>Furthermore, when hair is oxidised (meaning electrons are removed from the hair proteins) by chlorine, it actually damages the hair, enhancing the absorption of copper ions. Hair submerged in water with chlorine but without copper ions did not turn green. Meanwhile, hair exposed to water with only copper ions and no chlorine still formed a green colour.</p> <p>Hence, chlorine by itself does not play a role in causing the green hue we see in “pool hair”, but it does exacerbate it.</p> <h2>So, how does copper get into the hair?</h2> <p><a href="https://doi.org/10.1007/978-1-4684-0943-7_24">Other research teams</a> have conducted <a href="https://doi.org/10.1071/ch9682437">more extensive studies</a>, using sophisticated instruments, such as scanning electron microscopy, to examine how exactly copper ions attach to the hair.</p> <p>Our hair is predominantly composed of protein called keratin. Keratin is classified as a “structural fibrous protein”, meaning it has an elongated, sheet-like structure.</p> <p>The keratin structure is composed of various <a href="https://chem.libretexts.org/Courses/University_of_Kentucky/UK%3A_CHE_103_-_Chemistry_for_Allied_Health_(Soult)/Chapters/Chapter_4%3A_Structure_and_Function/4.4%3A_Functional_Groups">chemical groups</a> (types of atom groupings with similar properties), such as carboxyl groups, amino groups and disulfide groups. Copper ions have the ability to form bonds with these groups, forming a copper-keratin complex. This complex remains in the hair, causing it to appear green.</p> <p>Interestingly, the most recent study <a href="https://doi.org/10.32657/10356/142466">conducted in 2020</a>, showed copper ions mainly bind to the disulfide groups. This study also found other metal ions such as zinc, lead, chromium and mercury also bind to hair in the same way. This is very useful in <a href="https://theconversation.com/forensic-breakthrough-study-suggests-humans-can-be-identified-by-the-proteins-in-their-hair-65051">forensic analysis</a>, for example, because forensic scientists can analyse hair samples to determine if a person has been exposed to a particular metal.</p> <p>Light-coloured hair already has the most visible green discoloration, but research has shown that damaged hair, caused by bleaching, straightening, or exposure to sun, is the <a href="https://pubmed.ncbi.nlm.nih.gov/19586601/">most susceptible</a> to the binding of copper ions. This is because in damaged hair the disulfide groups have “broken bonds” (the link that holds the elements within these groups together is broken), making it easier for the copper ions to bind to the hair.</p> <h2>Can I prevent the green colour or get rid of it?</h2> <p>To prevent your hair from turning green in a swimming pool, you have two basic options. The first is a physical barrier – just wear a swim cap.</p> <p>The second option is chemical – you can pre-treat your hair with an alkaline shampoo. <a href="https://www.sciencedirect.com/science/article/abs/pii/S0891584918310050">Studies have shown</a> under alkaline pH conditions, the copper ions won’t attach to the hair. To treat your hair before going to the pool, you can either use a shampoo with a pH higher than 7, or you can even try mixing some baking soda into your regular shampoo.</p> <p>But what can you do if your hair has already turned greenish? Well, you can try washing your hair with a shampoo designed to achieve this, typically marketed as a “chlorine removal” shampoo. These products contain a chemical called EDTA – it can bind to metal ions (such as copper) and thus will remove copper from the hair.</p> <p>You may have heard tomato sauce or ketchup is a good way to get the green out of your pool hair – potentially because the red pigments are supposed to “cancel out” the green ones. However, I’m not aware of any scientific evidence this would work.</p> <p><em>Correction: This article has been amended to clarify that alkaline shampoos have a pH higher than 7, not lower.</em><!-- Below is The Conversation's page counter tag. 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More info: https://theconversation.com/republishing-guidelines --></p> <p><a href="https://theconversation.com/profiles/magdalena-wajrak-1432339"><em>Magdalena Wajrak</em></a><em>, Senior lecturer, Chemistry, <a href="https://theconversation.com/institutions/edith-cowan-university-720">Edith Cowan University</a></em></p> <p><em>Image </em><em>credits: Getty Images</em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/why-does-my-hair-turn-green-from-the-swimming-pool-211736">original article</a>.</em></p>

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