Elderly people sweat when they are active may be related to external environmental factors, but it may also be self-sweating (involuntary sweating during the day, a little sweat aggravated by movement), mostly caused by qi deficiency. 1. Environmental factors: If the external environment is hot and stuffy, sweating is a normal physiological phenomenon. It is because activities will speed up the blood circulation of the elderly, and the stimulation of the external environment will also cause the sweat glands of the elderly to secrete excessive sweat. 2. Sweat: in Chinese medicine, an activity is known as sweating, more closely related to gas deficiency, in addition to activities easy to sweat, but also often accompanied by bad wind, easy to catch a cold, tiredness, fatigue, color less Chinese and other symptoms. Sweating in the elderly may also be caused by other diseases, if the symptoms are more serious, it is recommended to consult a doctor in time to avoid delaying the condition.