A body temperature of 35.8℃ is not normal. The normal axillary temperature of human body is 36-37℃, 35.8℃ belongs to low body temperature, which is mostly seen in patients with Yang deficiency, poor body resistance, poor nutrition, fear of cold, cold limbs, etc. A body temperature of 35.8℃ does not have any clinical manifestations and does not cause diseases, but people with long-term low body temperature are prone to functional diseases, such as chronic coldness, reduced physical quality, poor peripheral blood circulation, insomnia, forgetfulness, anxiety, depression, etc. When the body temperature is 35.8°C, it is recommended to exercise more, drink more water, and consume more high-calorie, high-protein foods to increase the heat and energy in the body. There are some elderly people and very few young adults who do not have any clinical manifestations of body temperature at 35.8℃ for a long time due to their slow basal metabolism.