Exercise sweating less may be related to the cooler weather, exercise is relatively small, personal water intake is too small and other reasons, but also may be anhidrosis, dry syndrome and other diseases. 1. Physiological factors: exercise due to a large number of skeletal muscle heat production, the body in order to dissipate heat, only through the way of sweating, evaporation to take away excess heat. If the weather is cooler, the amount of exercise is relatively small, the body through radiation, convection and other ways can be very good heat dissipation, there will be the symptoms of exercise sweating less. In addition, when drinking too little water, there will also be the phenomenon of exercise sweating less. 2. Pathological factors (1) anhidrosis: anhidrosis, also known as sweat closure, is a kind of sweat gland disease due to sweat gland dysplasia, sweat gland atrophy, sweat duct obstruction and other reasons, manifested as no or little sweat on the whole body or local skin, and this kind of patients can have the symptom of low sweat in exercise. (2) Dry syndrome: Dry syndrome is an autoimmune disease caused by genetic, infectious, environmental and other factors, and patients may show symptoms of exercise sweating, in addition to other symptoms such as dry mouth and dry eyes. After eliminating physiological factors, if the symptoms of low sweat persists without relief, patients should consult a doctor in time to find out the cause and follow the doctor’s instructions to avoid delaying the condition.