Heat exhaustion

Provided by: Healthwise
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Heat exhaustion occurs when a person cannot sweat enough to cool the body. It generally develops when a person is working or exercising in hot weather.

Symptoms of heat exhaustion include fatigue, weakness, headache, dizziness, or nausea, and the skin is pale, cool, and moist. Mild heat exhaustion does not cause a change in a person's mental alertness and usually can be treated at home.

Moderate to severe heat exhaustion can sometimes lead to heatstroke, which requires emergency treatment.

Author:Jeannette Curtis
Caroline Rea, RN, BS, MS
Medical Review:Patrice Burgess, MD - Family Medicine
Adam Husney, MD - Family Medicine
Kathleen Romito, MD - Family Medicine
Last Updated: 05/25/2007

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