Whether you love hot weather or can’t stand the heat of summertime, if you’re young and healthy, your body has a pretty efficient system for cooling itself down. But the body’s natural system for keeping a steady core temperature becomes less efficient as we age. That’s why older adults are at risk for heat-related illness like heat stroke and heat exhaustion. This week on “Take Care,” Dr. Basil Eldadah of the National Institution on Aging discusses why older adults are more likely to experience