The cramps usually are felt in the arms, legs and stomach area. They usually occur after sweating heavily and not drinking enough liquids. Heat exhaustion symptoms include tiredness, dizziness, clammy skin, heavy sweating, loss of appetite, nausea and pain in the stomach area. The body can no longer cool itself. The person s skin becomes hot and red or blotchy, and their body temperature is as high as 105 degrees or more.
Heat stroke can cause a person to lose consciousness and go into a coma.
Heat stroke is a condition that needs immediate medical attention. Other effects of exposure include heart disease. Workers also become less alert and are more likely to injure themselves or others. The effects of heat increase when it is humid or when there is no breeze. A Wet Bulb Globe Temperature device gives a reading based on heat, humidity and wind speed, and provides a more accurate measure of the effects of heat on the body.