Sweating is the body’s way of keeping its internal temperature at a constant 98.6°. When the body’s temperature rises, the body’s sweat glands are stimulated to start producing water to cool off the body.
During exercise, an increase in body temperature as a result of metabolic heat production is the primary stimulus for sweating. Normally, sweating is initiated as a specific core temperature and continues in proportion to increase in core temperature.
There are around 2.6 million sweat glands over an average human body, so they can quickly coat the skin in a film of water when the body gets too hot. This water is heated by the heat energy in human bodies and as it evaporates heat is lost to the air.
People working in a hot, dry environment, as much as 2,000 mL/h of water may be produced by eccrine sweat glands and lost by evaporation.
Sweating
