Excessive Heat Emergency

Dog in Pool Most heat disorders occur because the victim has been overexposed to heat or has over-exercised for his or her age and physical condition. Conditions that can induce heat-related illnesses include stagnant atmospheric conditions and poor air quality. Consequently, people living in urban areas may be at greater risk from the effects of a prolonged heat wave than those living in rural areas.

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Before Extreme Heat

To prepare for extreme heat, you should:

Install window air conditioners snugly; insulate if necessary.
Check air-conditioning ducts for proper insulation.
Install temporary window reflectors (for use between windows and drapes), such as aluminum foil-covered cardboard, to reflect heat back outside.
Weather-strip doors and sills to keep cool air in.
Cover windows that receive morning or afternoon sun with drapes, shades, awnings, or louvers. (Outdoor awnings or louvers can reduce the heat that enters a home by up to 80 percent.)
Keep storm windows up all year.

During a Heat Emergency

What you should do if the weather is extremely hot:

Stay indoors as much as possible and limit exposure to the sun.
Stay on the lowest floor out of the sunshine if air conditioning is not available.
Consider spending the warmest part of the day in public buildings such as libraries, schools, movie theaters, shopping malls, and other community facilities. Circulating air can cool the body by increasing the perspiration rate of evaporation.
Eat well-balanced, light, and regular meals. Avoid using salt tablets unless directed to do so by a physician.
Drink plenty of water. Persons who have epilepsy or heart, kidney, or liver disease; are on fluid-restricted diets; or have a problem with fluid retention should consult a doctor before increasing liquid intake.