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Sport Science: You Sweat More After Exercise Than During

It might sound strange, but in fact, you sweat more after you finish exercising than you do during the exercise session itself.

This happens because the amount you sweat is determined by the temperature of the blood passing through the brain. Warmer blood triggers more sweat.

Explanation

During exercise, the heart beats rapidly to pump blood to the muscles, but also to move heated blood from the muscles to the skin, where the heat can be dissipated through the sweating process. Exercise can increase blood temperature to as much as 105 degrees Celsius, without any danger to the athlete.

However, once exercise stops, the heart rate drops and less blood can be pumped from the muscles to the skin. As a result, heat briefly builds up in the muscles, blood temperature rises and the temperature of the blood passing through the brain increases, triggering more sweat.

That's why heated-up athletes often find themselves still sweating, even after a quick shower.

References:

1. "Focus on Fitness: Sweating it out." Mirkin Report, January 1998.

2. Sarah Purcell (Editor), The Little Book of Shocking Health Facts, Fiell Publishing, 2011.



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