Improved Sleep May Help Elderly Ward Off Diseases

Scientists are investigating poor quality of sleep as the source for many diseases of aging, including heart disease, cancer and Alzheimer’s. They are working on ways to improve the amount of restful sleep that elderly people get, which researchers believe could promote much healthier lives. We spend approximately one-third of our lives asleep. In an ideal world, the time spent sleeping is restful, helping to refresh both alertness and memory.   As we age, though, experts say the...

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