In this week’s Keeping Kids Healthy column by UTMB Drs. Sally Robinson and Keith Bly: When the weather gets above 100 degrees, the only way for the body to cool itself and stay at 98.6 degrees is to sweat. Sweating is effective in keeping the body at its normal temperature, but the body has to have plenty of water to produce sweat. When your body runs out of water, you can overheat quickly.