Which symptom is most commonly associated with heat exhaustion?

Excessive sweating is the most commonly associated symptom of heat exhaustion. This condition arises when the body loses an excessive amount of fluid and salt, primarily through sweat, during prolonged exposure to high temperatures or vigorous exercise. The body's natural cooling mechanism becomes overwhelmed, which leads to excessive sweating as it attempts to manage internal temperatures.

In heat exhaustion, additional symptoms can include weakness, dizziness, nausea, and muscle cramps, which often accompany the excessive sweating. It is important to note that while other symptoms may occur, excessive sweating is a hallmark sign that indicates the body is struggling to cool itself effectively, making it the most recognizable symptom associated with this condition.