In treating someone with heat exhaustion, what is an important step?

Moving the person to a cool area is crucial in treating heat exhaustion. This condition occurs when the body overheats, often due to prolonged exposure to high temperatures, which can lead to dehydration and impairment of physiological functions. By relocating the individual to a cooler environment, you assist in lowering their body temperature and reducing the strain on their cardiovascular system.

In a cool setting, the body can begin recovering from the heat stress. This step is fundamental because it addresses the root of the problem: excessive heat and the body's inability to dissipate it effectively. Cooling the environment not only aids in thermoregulation but also allows for additional supportive measures, such as rehydration and rest, to be more effective.

The other options listed do not support recovery from heat exhaustion. Providing hot drinks would exacerbate the condition by further increasing the body temperature. Restricting fluid intake is counterproductive, as rehydration is essential in managing heat exhaustion. Encouraging vigorous exercise would also worsen the individual's condition by increasing body temperature and further depleting their energy and fluids.