ABSTRACT
C and, of course, the physiology of our body controls that temperature very effectively under normal conditions. If there is a change in the ambient conditions or in any other factor, such as a reduction in physical exertion, which lowers the skin temperature, blood flow to that part of the body is increased. If, on the other hand, the skin temperature increases, there is an increase in the output of perspiration which, by its evaporation, produces a cooling effect. Activity levels that do not adversely affect our comfort, therefore, are those for which the body’s mechanisms can control skin temperature without the accumulation of liquid sweat on the skin.
