Why We Sweat
When we work out, our muscles contract, releasing energy that increases our core body temperature, says Susannah Reiner, PhD, an exercise physiologist and an assistant professor of exercise and sport science at Seton Hall University in South Orange, New Jersey. Hot blood is sent to the skin, where fluid gets released through the sweat glands. As sweat evaporates into the air, it lowers the body temperature.
“Sweating is the body’s mechanism to make sure that we don’t overheat,” Dr. Chu explains.
A few factors influence exactly how much we sweat. Higher temperatures — particularly if it’s humid or there’s little breeze, so the sweat…
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