Sudation is a term used to describe the process of sweating, which is the body's natural way of cooling itself down. It is also known as PERSPIRATION, and is the EXCRETION of MOISTURE from the skin in the form of DAMPNESS or EXUDATION. SWEAT is composed of water and salt, and is produced by the SWEAT glands located in the skin. MOISTURE is also produced during sudation, as the SWEAT evaporates from the skin. Sudation is an important part of the body's thermoregulation system, and helps to keep the body temperature at a comfortable level.