Sweating is beneficial, but within a certain amount. Sweating is a normal physiological phenomenon of the human body, the outflow of sweat is conducive to the body’s metabolic waste out of the body, and can take away some of the heat, is one of the important ways for the body to regulate individual body temperature. The human body in a hot environment, or the process of activity, the metabolic rate is faster, will produce a large number of metabolic waste, can be discharged through sweating, but more can regulate the amount of sweat through their own nerve and body fluid metabolism, to maintain the normal effective circulation of blood supply the body, when the amount of sweating is more, more represents the body exists abnormal. Modern medicine believes that neurosis, hyperthyroidism and other endocrine diseases will appear to sweat a lot, should be distinguished according to the specific situation is physiological sweating or pathological excessive sweating.