Avoid alcohol and caffeine, which dehydrate the body. Avoid foods that are high in protein, which increase metabolic heat. Avoid strenuous activity. Stay indoors when possible. A number in degrees Fahrenheit that tells how hot it really feels with the heat and humidity.
Heat cramps are muscular pains and spasms due to heavy exertion.
They usually involve the abdominal muscles or the legs. It is generally thought that the loss of water and salt from heavy sweating causes the cramps. It typically occurs when people exercise heavily or work in a warm, humid place where body fluids are lost through heavy sweating. Fluid loss causes blood flow to decrease in the vital organs, resulting in a form of shock. With heat exhaustion, sweat does not evaporate as it should, possibly because of high humidity or too many layers of clothing.