Sweat is a vital bodily function, primarily involved in thermoregulation. It is produced by sweat glands, which are distributed across the skin. There are two main types of sweat glands: eccrine and apocrine. Eccrine glands are found all over the body and are responsible for regulating body temperature. Apocrine glands, located in areas like the armpits and groin, become active during puberty and are associated with stress and hormonal changes.