Hot Weather And Cold Weather

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HOT WEATHER AND COLD WEATHER: HOT WEATHER INFORMATION Periods of extremely hot weather--heat waves--can cause serious health problems for everyone. In fact, among weather-related events, heat waves are a leading cause of death. Illinois experienced this firsthand in July 1995, when extreme heat contributed to the deaths of more than 700 people in the Chicago area. The following are commonly asked questions about heat-related conditions and how to safely cope with them. Why do high air temperatures affect the body? Normally, the body cools itself by sweating. If temperatures and humidity are extremely high, however, sweating is not effective in maintaining the body's normal temperature. When this happens, blood chemistry can change and internal organs--including the brain and kidneys--can be damaged. Heat also can be stressful if the temperature changes suddenly, since it usually takes several days for the body to adjust to heat. What are some of the most common heat-related conditions? The most common heat-related conditions are heatstroke, heat exhaustion, heat cramps, sunburn and heat rash. Heatstroke and heat exhaustion are the most serious conditions. What is heatstroke? Heatstroke 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 degrees F or higher within 10 to 15 minutes. Heatstroke can result from overexposure to direct sunlight, with or without physical activity, or to very high indoor temperatures. It can cause death or permanent disability if emergency treatment is not given. What are the symptoms of heatstroke and how are they treated? Symptoms of heatstroke include an extremely high body temperature (above 103 degrees F, orally); red, hot and dry skin; rapid pulse; throbbing headache; dizziness;

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