What is a common sign of heat exhaustion?

In cases of heat exhaustion, one of the hallmark signs is cold and clammy skin. This condition typically arises when the body becomes overheated, often due to prolonged exposure to high temperatures, excessive physical activity in hot weather, or dehydration. Unlike heat stroke, where the skin may be hot and dry due to failure of the body's heat-regulating mechanisms, heat exhaustion presents with cool, moist skin. The body is trying to cool down by sweating, but it can become overwhelmed, leading to a more serious situation if not addressed promptly.

Understanding this symptom can help in identifying heat exhaustion early so that appropriate measures—such as moving the individual to a cooler environment, rehydrating, and monitoring their condition—can be taken to prevent progression to heat stroke or other serious complications.