{"id":28678,"date":"2023-06-16T15:30:53","date_gmt":"2023-06-16T13:30:53","guid":{"rendered":"https:\/\/www.sciencefocus.com\/?p=145878"},"modified":"2023-06-16T15:38:28","modified_gmt":"2023-06-16T13:38:28","slug":"how-to-cool-down-quickly-4-surprising-science-backed-ways-to-cope-with-a-heatwave","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/rss_feed\/how-to-cool-down-quickly-4-surprising-science-backed-ways-to-cope-with-a-heatwave\/","title":{"rendered":"How to cool down quickly: 4 surprising, science-backed ways to cope with a heatwave"},"content":{"rendered":"<p class=\"rssexcerpt\"> Top tip: focus on cooling your hands, not face. <\/p><p class=\"rssauthor\">By Thomas Ling\n                \t\t<\/p><p class=\"rssbyline\">Published: Friday, 16 June 2023 at 12:00 am<\/p><hr class=\"no-tts wp-block-separator\"\/><?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body> <p>Admit it: you\u2019re currently feeling somewhere between uncomfortably warm and on the verge of spontaneously combusting. Not that we\u2019re judging, mind. Over the past week, temperatures have soared across the UK, US and Europe, with a heatwave officially declared in several regions.<\/p>\n<p>Inevitably, this heat has created a work environment that humans simply aren\u2019t adapted for. \u201cWe\u2019re essentially tropical animals that have <a href=\"&quot;https:\/\/www.sciencefocus.com\/nature\/evolution\/&quot;\">evolved<\/a> to be mostly naked and resting in a climate of around 26\u00b0C. We\u2019re just not designed to be doing manual work in protective clothing in these temperatures, or sitting in stuffy offices in suits,\u201d says <a href=\"\/\/www.port.ac.uk\/about-us\/structure-and-governance\/our-people\/our-staff\/mike-tipton&quot;\" target=\"&quot;_blank&quot;\" rel=\"&quot;noopener&quot; noopener noreferrer\">Professor Mike Tipton<\/a> from the Extreme Environments Laboratory at the University of Portsmouth.<\/p>\n<p>So, bar turning up to work in a loincloth, how do you cool down in a heatwave? You\u2019re likely familiar with the basic tips: drink plenty of water, stay in the shade and close your curtains if things get particularly hot.<\/p>\n<p>However, there are plenty of other simple, scientifically supported techniques that will help you handle the heat. Here are four of the best.<\/p>\n<h2><strong>1. Cool your hands first, not your face<\/strong><\/h2>\n<p>If you\u2019re feeling the heat and somebody offers you a fan, it\u2019s likely that you\u2019ll try and cool your face first. However, according to Tipton, this is far from the quickest way of lowering your body temperature.<\/p>\n<p>\u201cCertainly, all that breeze on your face will simulate cold receptors there, which will give you a very powerful sensation of comfort. But actually, it\u2019s not going to extract the heat from your body,\u201d he says.<\/p>\n<p>Instead, a better cooling strategy is to immerse your hands in cold water for 15 to 20 minutes. \u201cYour hands have a high surface area to mass area \u2013 they have lots of blood flowing in them when you\u2019re hot. If your core temperature is hot, your body will send blood to the extremities in order to lose heat,\u201d explains Tipton.<\/p>\n<p>\u201cImmersing your hands in cold water won\u2019t <em>feel<\/em> as nice, but it\u2019ll cool you much faster than even an ice bath! It\u2019s so important to make a distinction between things that make you <em>feel<\/em> cooler and things that <em>actually<\/em> make you cooler.\u201d<\/p>\n<h2><strong>2. Avoid cold showers<\/strong><\/h2>\n<p>Sure, jumping into a chilly shower may seem tempting on a scorching summer\u2019s day. However, abruptly immersing your entire body in chilly water is, as strange as it sounds, a very slow way of cooling your body during a heatwave.<\/p>\n<p>\u201cPutting one area of your body in cold water is fine, but cover too much surface in it, and your body will actually constrict the amount of blood that reaches your skin,\u201d says Tipton. \u201cThe secret to cooling down is to deliver blood to your skin\u2019s surface and then <em>gently<\/em> take away the heat.\u201d<\/p>\n<p>In short: skip the ice bath and opt for a tepid shower instead. The ideal temperature will depend on your body and the heat outside, but Tipton suggests that water that feels relatively warm is the best option.<\/p>\n<p>\u201cYou want water that will achieve and maintain maximum skin flow,\u201d he says. \u201cYou need to maximise the temperature difference between your body and the water <em>without<\/em> shutting down blood flow to the skin.\u201d<\/p>\n<p><strong>Read more:\u00a0<\/strong><\/p>\n<ul><li><a class=\"&quot;standard-card-new__article-title&quot;\" href=\"&quot;https:\/\/www.sciencefocus.com\/news\/uk-heatwave-are-these-searing-temperatures-the-future-of-summers-in-the-uk\/&quot;\">UK heatwave: Are these searing temperatures the future of summers in the UK?<\/a><\/li>\n<li><a class=\"&quot;standard-card-new__article-title&quot;\" href=\"&quot;https:\/\/www.sciencefocus.com\/news\/warmer-weather-due-to-climate-change-is-eating-away-at-our-sleep\/&quot;\">Warmer weather due to climate change is eating away at our sleep<\/a><\/li>\n<\/ul><h2><strong>3. Opt for hot drinks<\/strong><\/h2>\n<p>Yes, the old wives\u2019 tale is true: <a href=\"&quot;https:\/\/www.sciencefocus.com\/the-human-body\/do-hot-drinks-really-cool-you-down\/&quot;\">sipping a warm drink will cool you down<\/a> faster than knocking back icy water.<\/p>\n<p>\u201cIt\u2019s not about trying to cool your body directly, but activating the systems \u2013 such as sweating, moving blood to your skin \u2013 that will,\u201d Tipton says. \u201cEating a hot curry will chill your body in the same way.\u201d<\/p>\n<p>This isn\u2019t to say that you should <em>only<\/em> drink hot fluids \u2013 staying <a href=\"&quot;https:\/\/www.sciencefocus.com\/the-human-body\/how-much-water-should-you-drink\/&quot;\">hydrated with water<\/a> of any temperature helps to cool the body through perspiration and transferring heat from active tissues to the skin. Just know that gulping down that oh-so-refreshing fridge water is unlikely to douse your internal temp quickly.<\/p>\n<p>\u201cThink about it: around 60 per cent of the human body is water \u2013 that\u2019s around 40 litres. Adding one glass of cold fluids isn\u2019t going to make much difference. It\u2019s a drop in the ocean,\u201d explains Tipton.<\/p>\n<div class=\"&quot;image-handler__container\" image-handler__container--full=\"\" style=\"&quot;padding-bottom:\" calc=\"\"> <picture><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?webp=true&amp;quality=90&amp;resize=300%2C200,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?quality=90&amp;resize=300%2C200,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?webp=true&amp;quality=90&amp;resize=355%2C237,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?quality=90&amp;resize=355%2C237,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?webp=true&amp;quality=90&amp;resize=405%2C270,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?quality=90&amp;resize=405%2C270,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?webp=true&amp;quality=90&amp;resize=554%2C369,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(max-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?quality=90&amp;resize=554%2C369,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?webp=true&amp;quality=90&amp;resize=620%2C413&quot;\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?quality=90&amp;resize=620%2C413&quot;\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?webp=true&amp;quality=90&amp;resize=408%2C272,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?quality=90&amp;resize=408%2C272,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?webp=true&amp;quality=90&amp;resize=556%2C371,\" https:=\"\" type=\"&quot;image\/webp&quot;\"><source media=\"&quot;(min-width:\" data-srcset=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?quality=90&amp;resize=556%2C371,\" https:=\"\" type=\"&quot;image\/jpeg&quot;\"><img class=\"&quot;wp-image-145883\" align=\"\" size-full=\"\" image-handler__image=\"\" image-handler__image--full=\"\" no-wrap=\"\" js-lazyload=\"\" data-src=\"&quot;https:\/\/images.immediate.co.uk\/production\/volatile\/sites\/4\/2023\/06\/hot-drink-summer-day-fa168aa.jpg?quality=90&amp;resize=620%2C413&quot;\" width=\"&quot;620&quot;\" height=\"&quot;413&quot;\" alt=\"&quot;Woman\" holding=\"\" mug=\"\" title=\"&quot;Woman\"\/><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/source><\/picture><\/div><div class=\"&quot;caption-hold&quot;\"><figcaption class=\"&quot;wp-caption-text&quot;\"><span class=\"&quot;caption-copy&quot;\"><i class=\"&quot;icon-arrow\" icon-camera-circle=\"\"\/> When drinking a hot drink, the heat goes straight to your core and can cause your body to think you\u2019re hotter than you really are<\/span><\/figcaption><span class=\"&quot;im-image-caption&quot;\"> <i>\u00a9 Getty<\/i><\/span><\/div>\n<p>There\u2019s one big caveat with this hot drinks tactic, however. If you do opt for a steaming beverage, best not to make it a coffee or tea. Caffeine, along with alcohol, can raise your body\u2019s metabolic rate, causing it to generate more heat. Moreover, caffeine acts as a diuretic, leading to a faster loss of fluids from your body compared to other beverages.<\/p>\n<p>In other words, it\u2019s time to rummage out that forgotten box of mint tea tucked away at the back of your cupboard.<\/p>\n<h2><strong>4. Enhance your sweat with a breeze<\/strong><\/h2>\n<p>We get it: \u2018fan yourself when hot\u2019 hardly seems like game-changing advice. However, it\u2019s important you fan as wide an area of your body as possible (without getting any weird looks at the beach, of course).<\/p>\n<p>Why? Well, a fan doesn\u2019t cool your body just by displacing the warm air in contact with your skin \u2013 it helps sweat evaporate too. By only fanning your face, you are limited to enhancing evaporation in a very small portion of your body.<\/p>\n<p>During an extreme heatwave, this can be a big problem. \u201cWhen the temperature reaches around 35\u00b0C, the only real way to cool the body is through sweating,\u201d says Tipton.<\/p>\n<p>\u201cThis is because the evaporation of sweat isn\u2019t actually reliant on temperature \u2013 it\u2019s all about the water vapour pressure difference between the air and the skin. A breeze helps here.\u201d<\/p>\n<p>When possible, consider using a non-electric hand fan to generate a refreshing breeze or promote natural airflow by opening multiple windows. \u201cRelying solely on air conditioning won\u2019t do much to mitigate <a href=\"&quot;https:\/\/www.sciencefocus.com\/climate-change&quot;\">climate change<\/a> \u2013 it\u2019s actually a huge part of the problem!\u201d says Tipton.<\/p>\n<section class=\"&quot;highlight\"><div class=\"&quot;highlight__content\" editor-content=\"\"> <h4><strong>About our expert<\/strong><\/h4>\n<p>Mike Tipton is a professor of human and applied physiology at the University of Portsmouth. He has spent 40 years researching in the areas of thermoregulation, environmental and occupational physiology, and has published over 750 scientific papers, reports and book chapters. Tipton has also worked as a consultant in survival and thermal medicine to the Royal Air Force and UKSport.<\/p>\n<p><strong>Read more:\u00a0<\/strong><\/p>\n<ul><li><a class=\"&quot;standard-card-new__article-title&quot;\" href=\"&quot;https:\/\/www.sciencefocus.com\/news\/reality-check-are-the-hottest-cities-in-the-world-becoming-uninhabitable-thanks-to-climate-change\/&quot;\">Reality Check: Are the hottest cities in the world becoming uninhabitable thanks to climate change?<\/a><\/li>\n<li><a class=\"&quot;standard-card-new__article-title&quot;\" href=\"&quot;https:\/\/www.sciencefocus.com\/planet-earth\/meet-the-scientists-going-to-extreme-lengths-to-study-climate-change\/&quot;\">Meet the scientists going to extreme lengths to study climate change<\/a><\/li>\n<li><a class=\"&quot;standard-card-new__article-title&quot;\" href=\"&quot;https:\/\/www.sciencefocus.com\/planet-earth\/can-we-stop-climate-change\/&quot;\">Are we too late to stop climate change?<\/a><\/li>\n<\/ul><p> <\/p><\/div> <\/section> <\/body><\/html>\n<hr class=\"no-tts wp-block-separator\"\/>","protected":false},"excerpt":{"rendered":"<p> Top tip: focus on cooling your hands, not face. <\/p>\n","protected":false},"author":24,"featured_media":28679,"template":"","categories":[1],"acf":{"readingTimeMinutes":"6"},"uagb_featured_image_src":{"full":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2023\/06\/how-to-cool-down-quickly-4-surprising-science-backed-ways-to-cope-with-a-heatwave.jpg",1200,511,false],"thumbnail":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2023\/06\/how-to-cool-down-quickly-4-surprising-science-backed-ways-to-cope-with-a-heatwave-150x150.jpg",150,150,true],"medium":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2023\/06\/how-to-cool-down-quickly-4-surprising-science-backed-ways-to-cope-with-a-heatwave-300x128.jpg",300,128,true],"medium_large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2023\/06\/how-to-cool-down-quickly-4-surprising-science-backed-ways-to-cope-with-a-heatwave-768x327.jpg",768,327,true],"large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2023\/06\/how-to-cool-down-quickly-4-surprising-science-backed-ways-to-cope-with-a-heatwave-1024x436.jpg",800,341,true],"1536x1536":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2023\/06\/how-to-cool-down-quickly-4-surprising-science-backed-ways-to-cope-with-a-heatwave.jpg",1200,511,false],"2048x2048":["https:\/\/c01.purpledshub.com\/uploads\/sites\/42\/2023\/06\/how-to-cool-down-quickly-4-surprising-science-backed-ways-to-cope-with-a-heatwave.jpg",1200,511,false]},"uagb_author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/author\/importmanagerhubsprylab-com\/"},"uagb_comment_info":0,"uagb_excerpt":"Top tip: focus on cooling your hands, not face.","_links":{"self":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/rss_feed\/28678"}],"collection":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/rss_feed"}],"about":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/types\/rss_feed"}],"author":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/users\/24"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/media\/28679"}],"wp:attachment":[{"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/media?parent=28678"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/wp-json\/wp\/v2\/categories?post=28678"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}