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Heat stroke is the most serious heat-related illness. It occurs when the body becomes unable to control its temperature: the body’s temperature rises rapidly, the sweating mechanism fails, and the body is unable to cool down. Body temperature may rise to 106°F or higher within 10 to 15 minutes. Heat stroke can cause death or...

Drink cool, nonalcoholic beverages. Rest. Take a cool shower, bath, or sponge bath. Seek an air-conditioned environment. Wear lightweight clothing.

The warning signs of heat exhaustion include the following: Heavy sweating Paleness Muscle cramps Tiredness Weakness Dizziness Headache Nausea or vomiting Fainting The skin may be cool and moist. The pulse rate will be fast and weak, and breathing will be fast and shallow. If heat exhaustion is untreated, it may progress to heat stroke....

Heat exhaustion is a milder form of heat-related illness that can develop after several days of exposure to high temperatures and inadequate or unbalanced replacement of fluids. Those most prone to heat exhaustion are elderly people, those with high blood pressure, and those working or exercising in a hot environment.

If medical attention is not necessary, take the following steps: Stop all activity and sit quietly in a cool place. Drink clear juice or a sports beverage. Do not return to strenuous activity for a few hours after the cramps subside because further exertion may lead to heat exhaustion or heat stroke. Seek medical attention...

Heat cramps are muscle pains or spasms – usually in the abdomen, arms, or legs that may occur in association with strenuous activity. People who sweat a lot during strenuous activity are more prone to heat cramps. This sweating depletes the body’s salt and moisture. The low salt level in the muscles causes painful cramps....

The best treatment for heat rash is to provide a cooler, less humid environment. Keep the affected area dry. Dusting powder may be used to increase comfort.

Heat rash is a skin irritation caused by excessive sweating during hot, humid weather. It can occur at any age, but is most common in young children. Heat rash looks like a red cluster of pimples or small blisters. It is more likely to occur on the neck and upper chest, in the groin, under...

The risk for heat-related illness and death may increase among people using the following drugs: Psychotropics, which affect psychic function, behavior, or experience (e.g. haloperidol or chlorpromazine); Medications for Parkinson’s disease, because they can inhibit perspiration; Tranquilizers such as phenothiazines, butyrophenones, and thiozanthenes; and Diuretic medications or “water pills” that affect fluid balance in the...

Electric fans may provide comfort, but when the temperature is in the high 90s, fans will not prevent heat-related illness. Taking a cool shower or bath or moving to an air-conditioned place is a much better way to cool off. Air conditioning is the strongest protective factor against heat-related illness. Exposure to air conditioning for...

Wear as little clothing as possible when you are at home. Choose lightweight, light-colored, loose-fitting clothing. In the hot sun, a wide-brimmed hat will provide shade and keep the head cool. If you must go outdoors, be sure to apply sunscreen 30 minutes prior to going out and continue to reapply according to the package...

People suffer heat-related illness when the body’s temperature control system is overloaded. The body normally cools itself by sweating, but under some conditions, sweating just isn’t enough. In such cases, a person’s body temperature rises rapidly. Very high body temperatures may damage the brain or other vital organs. Several factors affect the body’s ability to...

Those at greatest risk for heat-related illness include infants and children up to four years of age, people 65 years of age and older, people who are overweight, and people who are ill or on certain medications.