Elderly people may sweat due to qi deficiency, yin deficiency, yang deficiency and other reasons. Qi deficiency: As the body’s blood and qi have a fixed (consolidation) role in the qi deficiency, the fixed role will fail, the main manifestation of the sweat at every turn, although the weather is not hot, the elderly will sweat, belonging to the performance of qi deficiency, usually need to follow the doctor’s instructions to take qi medication. Yin deficiency: Yin deficiency sweating is usually night sweating (abnormal sweating after going to sleep, waking up sweating stops), that is, night sweating, due to the lack of yin fluid in the human body, resulting in a deficiency of fire, yin and yang imbalance, resulting in the heat of the body to force out the sweat, to relieve the old man sweating, night sweating treatment mainly to nourish the yin as a mainstay. Yang deficiency: Yang deficiency can also lead to sweating, mostly spontaneous sweating. Self-sweating is characterized by frequent sweating, which is worse after activity, and is often accompanied by coldness and fatigue (mental exhaustion and physical weakness). Treatment is mainly based on Yang tonification. Elderly people sweating should immediately consult the doctor, under the guidance of the doctor to regulate, usually pay attention to the dietary aspects of the regulation, keep in a good mood, quit smoking and drinking, more exercise, in order to promote the recovery of the disease.