Is it true that … having a hot drink will cool you down?

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A warm cup of tea can trigger sweating and lower your body temperature, but only if you’re in an airy spaceCould a warm cup of tea really be the key to cooling down in hot weather? Or is that just something caffeine fiends tell themselves when they’re still working through a pot of coffee as the temperature hits 30C?Prof John Tregoning, the author of Live Forever? A Curious Scientist’s Guide to Wellness, Ageing and Death, says it depends on the circumstances. He points to the&nbsp