Internally Peer Reviewed 1. When air temperatures are below normal body temperature, heat loss to the surrounding environment is rapid. When air temperatures are high the body can only dissipate heat by sweating where the heat is carried away by sweat evaporation at the skin surface.
Body heat is carried away by air currents.
The higher the velocity of these currents, the faster the heat loss. The rate of heat loss diminishes as air temperatures increase. High wind velocity can also produce windburn which will influence thermal regulation. Ambient air, at any given temperature, can only absorb so much moisture. When humidity is low, sweat evaporates quickly and the rate of heat loss is rapid.