Symptoms of this illness include pale, clammy skin and feelings of nausea. Other signs are a loss of concentration or reaction time diminishing. Like heat cramps, to avoid exhaustion drink plenty of water and get out of the heat as soon as possible. The final and most severe type of heat problem is the heat stroke. When a person is having a heat stroke, his skin becomes very dry and red as opposed to pale and clammy.
Strokes occur when a person is having trouble perspiring enough to keep the body cool.
A person will get a rapid, bounding pulse and will have very hot skin. You should try to cool them down by whatever means possible, and get them to emergency care. While sports drinks have sodium and electrolytes that help the body, Vandever said that a normal person's diet provides both. Sports drinks also have sugar and carbohydrates, which can provide extra energy for day-long events like tournaments. That was their biggest advantage.