Thermodynamics

The average normal body temperature from oral measurements is 36.8°C. The temperature measurements of individuals vary from 35.6°C to an upper limit of approximately 37.7°C for a healthy adult 40 years or younger. Are there differences in body temperature between the sexes? There seems to be little difference in the core body temperature between males and females; however, studies have shown female skin temperature being up to 3°C lower than male skin temperature. This difference is primarily due to males generally having a higher percentage of muscle mass, which tends to generate more heat in the body due to a higher metabolic rate.