I would say that the given statement is false. Overexertion in extremely hot temperatures does not help the body to cool itself. <span>Overexertion in hot weather or working in hot, poorly ventilated or confined areas can increase your risk of heat stress. Hope this answers the question. </span>
Overexertion in extremely hot temperatures elevates the body temperature above the normal range. Excess physical activity needs input of oxygen to allow the muscles to continue the work. Muscles carry out cellular respiration to produce energy. Overexertion also makes cardiovascular system and respiratory system to increase the blood flow and to increase breathing rate respectively. All these activities would increase the body temperature rather than cooling it down.
