Make sure you are taking in more fluid than you are losing. Try to schedule physical outdoor activities for the cooler parts of the day. Drink appropriate sports drinks to help maintain electrolyte balance. For infants and young children, solutions like Pedialyte will help maintain electrolyte balance during illness or heat exposure. Do not try to make fluid and salt solutions at home for children.
Heat stroke is the most severe form of heat illness and is a life-threatening emergency.
It is the result of long, extreme exposure to the sun or other heat source, in which a person does not sweat enough to lower body temperature. The elderly, infants, persons who work outdoors and those on certain types of medications are most susceptible to heat stroke. It is a condition that develops rapidly and requires immediate medical treatment. Our bodies produce a tremendous amount of internal heat and we normally cool ourselves by sweating and radiating heat through the skin. However, in certain circumstances, such as extreme heat, high humidity or vigorous activity in the hot sun, this cooling system may begin to fail, allowing heat to build up to dangerous levels.