Few physicians would recommend that all octogenarians pick up a three-hour-a-day running habit, but adding even a small amount of movement to daily life has been repeatedly shown to be beneficial, for a whole range of reasons. “Exercise likely works through several mechanisms,” says Dr. Thomas Gill, director of the Yale Program on Aging. “Increasing physical activity will improve endurance; it benefits muscle strength and balance and [reduces] occurrence of serious fall injuries. It also provides a benefit to psychology, by lifting spirits.”

Few physicians would recommend that all octogenarians pick up a three-hour-a-day running habit, but adding even a small amount of movement to daily life has been repeatedly shown to be beneficial, for a whole range of reasons. “Exercise likely works through several mechanisms,” says Dr. Thomas Gill, director of the Yale Program on Aging. “Increasing physical activity will improve endurance; it benefits muscle strength and balance and [reduces] occurrence of serious fall injuries. It also provides a benefit to psychology, by lifting spirits.”