A hot summer day can be just as deadly as a chilly winter one for older adults. Take this quiz to see how much you know about heat stroke and heat exhaustion.
1. Heat exhaustion and heat stroke mean the same thing.
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Heat exhaustion is a warning that your body is becoming overheated. Signs of heat exhaustion include heavy sweating, paleness, muscle cramps, fatigue, dizziness, headache, nausea or vomiting, and fainting. If you don't get help, you may get heat stroke. Heat stroke is also called sunstroke. It is a medical emergency that is often fatal. It occurs when your body can't control its temperature by normal cooling mechanisms such as sweating. Your body temperature may rise to 106°F (41°C) or higher. Symptoms of heat stroke include high body temperature, dry skin (no sweating), rapid pulse, headache, nausea, altered mental status, seizures, and unconsciousness. Get medical help right away if someone has these symptoms.
2. Heat-related illness is only a concern if the temperature reaches 100°F (37.8°C).
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Older adults can be at risk for heat-related illness at lower temperatures, particularly if the air is humid. High humidity makes it harder for sweat to evaporate from the body. If the temperature is 90°F (32°C), for instance, and the relative humidity is 70%, the air feels as though it’s 106°F (41°C). If you’re standing in full sun, it would feel as though the temperature were 121°F (49°C).
3. Having high blood pressure increases your risk of developing a heat-related illness.
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You are at higher risk of developing heat-related illness if you’re following a salt-restricted diet because of high blood pressure. Don’t take salt pills without checking with your doctor. Older adults taking multiple medicines also are at higher risk for heat-related illness. This is especially true for water pills (diuretics). It’s important to drink extra fluids during hot weather, but ask your doctor if you need to watch how much you drink and how much is safe.
4. If you’re overweight, you're at higher risk of developing a heat-related illness.
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A person who is overweight has more difficulty regulating body temperature than someone of normal weight. An overweight person also retains more body heat.
5. The only way to keep cool when it's hot indoors is to use a fan or air conditioner.
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Although fans and air conditioners work best, if you don't have either, you can still take steps to keep cool. Open windows at night to let cool air in. If possible, open windows on two sides of the house to allow a cross-flow of air. Keep blinds, drapes, or shades pulled during the hottest part of the day. Take a cool shower or bath.
6. If your house is hot in the summer, a good place to seek relief is the public library.
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Also check out shopping malls, senior centers, and movie theaters. If you don't have transportation, your local senior center or agency on aging may be able to help.
7. It's harder for older people to tell when they're overdressed for the weather.
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Older adults often have poor circulation, and their sweat glands don't work as well as they did. Stick with lightweight, loose-fitting cotton clothing. Light-colored clothing also helps because it will reflect some of the sun’s heat. Also wear a wide-brimmed hat to keep the sun off your face.
8. Headache, nausea and fatigue are common symptoms of heat-related illness.
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Symptoms of heat exhaustion also include a lot of sweating, dizziness, and cold, clammy skin. The pulse is usually fast and weak.
9. One of the first steps to treat heat exhaustion is to get the person into a cool place.
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If possible, also have the person lie down and rest. Offer the person cool water or fruit juice. Don't give the person beverages that contain caffeine or alcohol. Sponging off with cool water will also ease symptoms.
In hot environments, your body may have trouble keeping its temperature at a safe level. As a result, your body temperature rises to unsafe levels. This is heat stress. Heat stress can develop quickly. It can also be very dangerous to your health.
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