Sweat: A cooling system that's an ancient language too

Humans are sweaty. With more than 2.5 million sweat glands distributed across the surface of our skin, we sweat more profusely than any other animal. Though the average person produces about 2 cups of sweat per day, this amount can increase to about 3 gallons with vigorous activity in high...



via L.A. Times - Health http://ift.tt/1tvxaoQ