Which of the following is a common sign of heat exhaustion?

Heavy sweating is a common sign of heat exhaustion. This occurs as the body attempts to cool itself down when it overheats. When someone is experiencing heat exhaustion, their body temperature rises, and the natural response is to sweat profusely in an effort to regulate and lower the body temperature. This can lead to depletion of fluids and salts in the body, which is a serious concern.

Increased heart rate can occur as a body responds to increased temperature and dehydration but is not the most definitive sign. Loss of vision is more closely associated with more severe heat-related illnesses, such as a heat stroke, rather than heat exhaustion. Shivering is indicative of a drop in body temperature, typically associated with exposure to cold rather than heat exhaustion, which involves an elevated body temperature. Understanding the signs and symptoms of heat-related illnesses is crucial for effective prevention and response, particularly in outdoor or active environments.