The cool weather in London is good news for the Olympic athletes because their bodies won’t need to put as much energy into cooling off.
But most of us aren’t lucky enough to be headed to London, and we could use some help keeping cool.
When you get hot you sweat — but it’s not enough to just sweat. To cool off, you need that sweat to evaporate. It’s evaporation that drains the heat from your body.
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