Body temperature is the internal temperature of the body.
Human beings are warm blooded
Whatever the external temperature, body temperature is constant in human beings (around 37°C, although it can vary slightly from 36.1 °C to 37.8°C depending on the time of the day. By definition, we are therefore warm-blooded organisms.
Regulation of body temperature
Body temperature is controlled by the hypothalamus, which acts to maintain a constant temperature. If it is too hot, the body transpires and heat is removed. If it is too cold, shivering (which involves muscle contractions) produces heat.
Transpiration (sweating) reduces the body temperature. © DR