Heat exhaustion is the second-most serious of three heat-related conditions that can affect your body. Heat cramps are the mildest, heat stroke the most serious. Heat exhaustion can occur when you exercise intensely for long periods of time in hot, humid air. Recognize the symptoms and get treatment as soon as possible, because heat exhaustion can develop into heat stroke, which can be fatal.
Sweating
When you exercise, your body produces sweat as a cooling mechanism. In heat exhaustion, the sweating you experience is heavy and excessive.
Temperature
Normal body temperature 98.6 degrees F. During heat exhaustion, you can develop a low-grade fever. If your fever exceeds 104 degrees F, seek medical help immediately.
Heart
Low blood pressure and a rapid, weak pulse often accompany heat exhaustion.
Other Symptoms
Heat exhaustion can cause you to feel faint. Confusion, nausea, dizziness, fatigue, headaches and dark urine are other possible symptoms.
Rest
If you think you are experiencing heat exhaustion, cool off as soon as possible. Go into an air-conditioned building or find a cool spot in the shade. Lie on your back and elevate your legs above your heart.
Clothing
Tight clothing that clings to your body can exacerbate the symptoms of heat exhaustion. Loosen or remove anything that is tight-fitting.
Fluids
Dehydration is a primary cause of heat exhaustion. Drink sports drinks with electrolytes or water to rehydrate yourself. Avoid caffeine and alcohol.
Misting
To cool yourself down, try splashing water on your face or taking a cool bath or shower.
IV
If you don't feel better after 30 minutes out of the heat, seek medical attention. In more serious cases, intravenous fluids may be administered.
