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    13 Cool Facts About Sweat


    1. The average person has 2.6 million sweat glands in their body.

    2. Sweat glands are most concentrated on the bottom of our feet and least concentrated on our backs.

    3. Yellow underarm stains are caused by your apocrine glands, which contain proteins and fatty acids and thus make underarm secretions thick and milky.

    4. Hippo sweat is RED.

    5. Eating can make you sweat; when you eat your metabolism increases, which boosts your body temperature. You then sweat in order to cool down.

    6. Primates and horses have armpits that sweat like human armpits.

    7. The Gatorade Sports Science Institute has found that in conditions of 85 degrees and 40% humidity, the average runner will lose 2 to 4 pounds of sweat an hour.

    8. About 3%of the population suffers from hyperhidrosis, or excessive sweating.

    9. Sweat itself is odorless. It's the bacteria on the skin that mingles with it and produces body odor.

    10. Men have slightly saltier sweat than women, and they also sweat, on average, 40% more than women.

    11. Cows sweat through their noses.

    12. A group of Swedish engineers has built a "Sweat Machine" that pulls the sweat out of damp clothing, and then purifies and filters it until it's fit to drink.

    13. Vegetarians' sweat smells better.

    (All facts from here and here.)