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heat, safety, training -

Give or take a degree or two, your core body temperature should be around 37°C. If it climbs (or drops) just a few degrees, you’re in trouble. Exercise in hot conditions triggers a number of bodily reactions – the most important are increased blood flow to the skin (you may have returned home with a red face after a run) and sweating (you’ve certainly returned home sweating!). Sweating is the fastest and most effective way for your body to rid itself of heat, but sweat must evaporate to have any beneficial effect. In high humidity (found nearly all the time...

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