Why do people sweat?

The cause of human sweating. Sweating is a normal physiological phenomenon, because the body temperature is constant, generally maintained at around 37℃. Through the control of the thermoregulation center of the nervous system, the body's heat production and heat dissipation remain relatively balanced, while the skin of the human body has many sweat glands, which secrete sweat, so that the body's heat production and heat dissipation remain relatively stable and will not lead to a rise in body temperature.

After hot weather or strenuous exercise, the body will sweat a lot, so that the body temperature will be kept in a constant range through sweating, and the internal body temperature will not rise because of the increase of external temperature.