what is sweat
Sweating. Sweating is a bodily function that helps regulate your body temperature. Also called perspiration, sweating is the release of a salt-based fluid from your sweat glands. Changes in your body temperature, the outside temperature, or your emotional state can cause sweating.yperhidrosis is the condition of excessive sweating from the armpits, hands, and feet. This condition can be embarrassing and may prevent you from going about your daily routines. Conversely, anhidrosis is the absence of sweat.