Heat exhaustion occurs because the body is unable to dissipate excessive heat and becomes overheated.

• A. True
• B. False
• C. Not enough information
• D. Sometimes

Answer: (A)

Heat exhaustion happens when the body's cooling system can’t keep up with the amount of heat entering or produced by the body, often because of dehydration and hot conditions. The primary way the body cools is by sweating and then evaporating that moisture; if sweat evaporation is insufficient or fluids are low, the core temperature rises. The statement captures this idea precisely, so it’s true. In practice, recognize signs like heavy sweating, cool, pale skin, fatigue, and dizziness, and respond by moving to a cooler environment, loosening clothing, rehydrating, and applying cool compresses. If symptoms worsen or don’t improve, seek medical help, since heat stroke is more dangerous and requires urgent care.