About 40-45 % of the body’s heat is lost through head.
Step-by-step explanation:
A human body losses heat to maintain its internal body temperature or to maintain body thermoregulation in the body. The heat lost through the body when the external temperature is either through conduction or radiation.
The amount of heat lost from the body depends upon the surface area as the heat transfer the states that release of heat from a surface is directly proportional to the surface area of the body.