Staying Healthy
Study may explain why older people don't sleep well
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It's common knowledge that older people have trouble falling asleep, sleep less deeply, and awaken often during the night. But why is that so? A team of researchers may have found an answer deep in the brain. Their study, which will appear in the journal Brain, was published online in August.
A team from Harvard Medical School looked at data from the Rush Memory and Aging Project, which enrolled 1,000 healthy 65-year-olds and is following them until their deaths, after which their brains are donated for research. Beginning in 2005, the men and women in the study wore wristbands with motion recorders that enabled the researchers to determine how long and how well they were sleeping.
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