{"id":15310,"date":"2022-07-13T13:00:54","date_gmt":"2022-07-13T11:00:54","guid":{"rendered":"https:\/\/www.sciencefocus.com\/?p=17996"},"modified":"2022-07-16T02:43:32","modified_gmt":"2022-07-16T00:43:32","slug":"scientifically-proven-tips-on-how-to-keep-cool-in-the-heat","status":"publish","type":"rss_feed","link":"https:\/\/c01.purpledshub.com\/bbcsciencefocus\/rss_feed\/scientifically-proven-tips-on-how-to-keep-cool-in-the-heat\/","title":{"rendered":"Scientifically proven tips on how to keep cool in the heat"},"content":{"rendered":"

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By Amir Adhamy\n \t\t<\/p>

Published: Wednesday, 13 July 2022 at 12:00 am<\/p>

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The UK is in the midst of a heatwave, and the Met Office have issued red warnings for extreme heat<\/a> on Monday 18th and Tuesday 19th July 2022. With daytime temperatures exceeding 30\u00b0<\/b>C, the nights are also likely to be exceptionally warm, especially in urban areas.<\/p>\n

If you\u2019re unable to take up residence inside air-conditioned buildings here are a few tips, backed by science, that can help you to stay cool.<\/p>\n

1) Shed a few layers<\/strong><\/h2>\n

Our bodies have cooling all sussed out. When we get hot, we sweat, and as that sweat evaporates it draws heat energy from the skin, cooling us down in the process. So the best way to stay cool if you\u2019re out of direct sunlight (and in sympathetic company) is to wear as little as possible.<\/p>\n

If you do need to cover up, however, wear loose-fitting clothes that allow air to flow over the skin, speeding up evaporation. Also try to wear light-coloured garments, as these absorb less of the Sun\u2019s radiation than darker clothing.<\/p>\n

If you\u2019re exercising, meanwhile, don some high-tech sportswear that uses \u2018moisture-wicking\u2019 fabrics. These fabrics transport sweat away from the skin to the outer layers of the material, where it can spread out and evaporate away.<\/p>\n

2) Have a drink\u2026<\/strong><\/h2>\n

As you sweat, you\u2019ll need to replace all that water you\u2019re losing. One way to figure out how hydrated you are is to check the colour of your urine. If it\u2019s light like lemonade, then you\u2019re probably fine; if it\u2019s dark like apple juice then you\u2019re dehydrated.<\/p>\n

When you become dehydrated, the body slows down its sweat rate to conserve fluid, making you even hotter. So a drink can rehydrate you and help you cool down.<\/p>\n

But while an ice-cold cider may seem like a good idea, alcohol is actually a diuretic (it causes you to pee more), which can make you dehydrated. It also causes the blood vessels in your skin to dilate, making you feel hotter. So if you want to stay cool, go easy on the booze.<\/p>\n

3) Don\u2019t open all the windows<\/strong><\/h2>\n

To create a refreshing breeze on a stifling summer\u2019s day, don\u2019t haphazardly throw open the windows. Instead, generate a draught by opening downstairs windows that are in the shade, and upstairs windows that are in the Sun.<\/p>\n

Because hot air rises, sunny upstairs rooms will be warmer than those that are downstairs in the shade. This sets up a pressure difference, and by strategically opening windows in these rooms you\u2019ll create a breeze that draws in cool, fresh air from downstairs and forces warm air out of the house. You can increase this effect by using window-mounted fans to suck in air downstairs and blow out air upstairs.<\/p>\n

Read more:\u00a0<\/strong><\/p>\n