Warning: Older age makes you vulnerable to the summer heat

The ability to function relies on maintaining a core body temperature. In a hot environment, body temperature starts to rise and the body releases heat by sweating or by carrying blood away from the body’s core to the skin surface, where heat leaves the body. But those functions wane in older age. As a result, heat can build up, putting organs at risk for severe damage. To avoid such problems, it helps to stay hydrated; avoid going outside during the peak temperatures of the day; stay inside in an air-conditioned environment; and wear lightweight, light-colored clothing in warm weather.