The normal body temperature of a person in summer is between 36-37°C, in this case the axillary body temperature. The human body temperature is controlled by the hypothalamus and the thermoregulatory center to maintain the dynamic balance of heat production and heat loss. The human axillary body temperature is generally constant between 36-37℃, regardless of spring, summer, autumn and winter. In summer, due to the hot temperature, people will have more sweating, in order to increase heat dissipation and maintain a constant body temperature. Human body temperature varies slightly throughout the day, with afternoon body temperature slightly higher than morning body temperature; elderly people have a slightly lower body temperature than young adults due to slowed metabolism; women have a slightly higher body temperature during pregnancy, with fluctuations in body temperature not exceeding 1°C.