From the perspective of Chinese medicine, the body always feels cold is a sign of deficiency, usually in men due to kidney deficiency and qi deficiency. In women, Yin deficiency and blood deficiency are the only reasons for feeling cold. From the perspective of Western medicine, the body is always cold, there are usually several factors: 1. The most common factor is endocrine diseases, usually typical diseases are hypothyroidism, hypoadrenocorticism, when the basal metabolic rate is low, so will feel cold. 2. metabolic diseases, such as hypoglycemia, when there is a hypoglycemic reaction, will feel cold, sweating, dizziness, palpitations, hand tremors and other clinical symptoms. 3. Atherosclerotic heart disease and ischemia of the large arteries due to cerebral insufficiency of blood supply will also often feel the clinical manifestations of coldness.