Water wicks away body heat 25 times faster than air. While you’re in the shower, you’re showered with artificially heated water to keep you warm. When you get out of the shower, you’re transferring your body heat to the water that’s still on your body.
Along the same lines, the process of evaporation requires energy. When water evaporates on your skin, a big part of that energy comes from your body heat. That’s why sweating is so effective at cooling down your body.
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