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Signs of heat exhaustion in older adults — what to look for?

April 6, 2026

Quick Answer

Heat exhaustion in older adults can be identified by signs such as heavy sweating, pale or cool skin, fast and weak pulse, nausea or vomiting, dizziness or fainting, and headaches. It can progress to heatstroke if left untreated. Prompt recognition and treatment are crucial to prevent serious complications.

Recognizing the Warning Signs of Heat Exhaustion

Older adults are more susceptible to heat exhaustion due to decreased sweat gland function and decreased ability to regulate body temperature. They may experience heavy sweating, which can be a sign that their body is trying to cool down. However, if the body temperature continues to rise, the sweat becomes diluted, and the skin may appear pale or cool to the touch.

Cooling Methods and Treatment

To treat heat exhaustion, it’s essential to lower the body temperature immediately. Remove excess clothing, especially tight or heavy items that can trap heat. Provide cool water to drink, but avoid offering cold water, which can cause stomach cramps. The American Red Cross recommends using cool water to bring down the body temperature, aiming for a temperature drop of 1-2 degrees Fahrenheit per 10 minutes. A cold compress or fan can also be used to help cool the person down. If the person is unable to drink or shows signs of heatstroke, seek medical attention immediately.

Preventing Heat Exhaustion and Heatstroke

Preventing heat exhaustion and heatstroke requires taking precautions during hot weather. Encourage older adults to drink plenty of water and electrolyte-rich fluids, such as sports drinks, to replace lost salts. Schedule outdoor activities during the cooler parts of the day, and take regular breaks in shaded areas. Wear light, loose-fitting clothing that allows for airflow and helps to keep the body cool. Avoid strenuous activities, especially if the person has underlying medical conditions, such as heart disease or diabetes.

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