Low body temperature will cause a decline in the rate of metabolism, the human body appears frozen, and in severe cases, there is a loss of temperature, and multiple organ function is impaired. 1. Low body temperature will cause a decline in metabolic rate, resulting in three major metabolites sugar, fat, protein transit dysfunction, affecting the absorption of nutrients, resulting in malnutrition. 2. Hypothermia causes a decrease in basal metabolic rate, and also causes peripheral circulation disorders, freezing, and in severe cases, hypothermia. 3. Hypothermia can cause serious damage to multiple organ functions, inducing cardiovascular and cerebrovascular diseases, liver diseases, and so on. Headaches, sleep disorders, abdominal distension, etc. can occur. Hypothermia has many harmful effects on the human body, usually pay more attention to keep warm, increase the appropriate clothing, strengthen the nutrition, appropriate exercise.