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SATURDAY, July 3 (HealthDayNews) -- You don't have to be lost in the Sahara Desert to be in danger of heat stroke or heat exhaustion.

In America over the past 20 years, more than 8,000 people have died of excessive heat exposure. That's a higher number of deaths in that period than those caused by hurricanes, lightning, tornadoes, floods and earthquakes combined, according to the U.S. Centers for Disease Control and Prevention.

Those at greatest risk of heat exposure are the elderly, the very young and those with chronic disease and mental illness.

While people are generally able to cool down their bodies by sweating, when it's too hot sweating may not be enough. So, the CDC recommends that on very hot days, those at risk of heat stroke stay in an air-conditioned area or go to a public place that is air-conditioned. People should also drink a lot of water, reduce strenuous activities and wear loose-fitting, lightweight clothing.

During hot days, people should also limit their time outdoors and ensure that no one is left in a hot car for any period of time. You may also want to periodically check on neighbors who don't have air-conditioning.

If a person is suffering from heat exhaustion, you should quickly get them to a cool place. If they are awake, have them drink a glass or water, but not too quickly. Loosen tight-fitting clothing, apply cool, wet towels and call 911, according to the American Red Cross.

If a person collapses with heat stroke, medical help is essential since this is a life-threatening condition. You should call 911 and then follow the steps above, including applying ice or an ice pack wrapped in a cloth to the person's wrists, neck, ankles and armpits. Watch for signs of breathing problems and keep the person lying down, says the Red Cross.

More information

For health and safety tips about heat illnesses, visit the American Red Cross.

(SOURCES: U.S. Centers for Disease Control and Prevention; American Red Cross)

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