Regulation of Sweat Production

The loss of heat by evaporation is regulated by controlling the rate of sweat production by the eccrine sweat glands. These glands are innervated by sympathetic cholinergic nerves, the firing of which can be stimulated by circulating epinephrine and norepinephrine. The latter hormones produce the sweating associated with stress and anxiety. The rate of sweat production can vary from 0 to about 1.5 L/hr in an individual who is not acclimatized and is exercising in a hot environment. When the air is completely dry so that all the sweat evaporates from the skin surface, 1.5 L/hr of sweat production results in a loss of almost 900 kcal/hr.

Psychology Of Weight Loss And Management

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