Generally, the human body to regulate its temperature. When the body gets very hot, cool uses several strategies, including perspiration. But if a person spends too much time to heat without drinking enough fluids, the cooling of the body can not function properly. When the body becomes dehydrated and can not cool itself by sweating. When this happens, the body temperature may rise enough to cause nausea in a person.
The first symptoms of heat stroke occurs when body temperature rises above normal and may include headache, nausea, vomiting, muscle cramps and fatigue. These early symptoms are sometimes called heat exhaustion. If no action is taken to reduce the temperature, heat exhaustion can worsen and cause a stroke.
Heat stroke is a serious and potentially fatal form of disease caused by heat. Body temperature rises to 105 degrees Fahrenheit (40 degrees Celsius) or more and you experience neurological changes, such as mental confusion or unconsciousness.
At these high temperatures, body proteins and the membranes that cover the body’s cells, especially in the brain, begin to break down and malfunction.
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