Which symptom is associated with heat exhaustion?

Excessive sweating is a key symptom associated with heat exhaustion. This condition occurs when the body becomes unable to cool itself properly, often due to prolonged exposure to high temperatures or strenuous physical activity in hot environments. As the body attempts to regulate its temperature, it increases perspiration to facilitate evaporative cooling. This excessive sweating is a critical indicator that the body is experiencing heat stress and is trying to cool down.

While rapid pulse, confusion, and dry skin can occur in various heat-related illnesses, such as heat stroke, they are not hallmarks of heat exhaustion. For example, in cases of heat exhaustion, sweating is usually profuse while skin may still feel cool and clammy, and confusion typically indicates a more severe heat-related condition. Therefore, excessive sweating is the most characteristic symptom of heat exhaustion.