Get all this and more now, free . Discuss This Topic Share your views and read what others have to say. The body normally cools itself in hot weather by sweating. But for some people in certain conditions, sweating is simply not enough. In such situations, a person's body temperature rises rapidly, causing potential damage to the brain and other vital organs.
Several factors affect the body's ability to cool itself during extremely hot weather.
One is humidity. When the humidity is high, sweat will not evaporate at a normal rate. This, in turn, prevents the body from releasing heat as quickly as needed. Other things that can limit the body's ability to regulate temperature are old age, obesity, fever, dehydration, heart disease, poor circulation, sunburn, and drug and alcohol use. People most prone to heat exhaustion are the elderly and those working or exercising in a hot environment.