Where Does Sweat Come from?

Sweat flows out of the sweat glands which specially secrete sweat. There are a lot of sweat glands in the human body, big ones and small ones. The big sweat glands grow in the armpits, behind the knees and in the anal area, and small sweat glands grow everywhere on the human body. An adult usually has one kilogramme of sweat come out even when he or she just sits there doing nothing. On summer days, people sweat more. Sweating benefits the human body a lot. It can take a lot of useless things away from the body, and help the body give off the extra heat. If a person does not sweat he or she will be sick.