Sleep deprivation at any age is bad for you. It has been tied to diabetes in pregnancy, postpartum depression in new fathers, and bipolar disorder at all ages. You may have read that “old people” don’t need as much sleep as young people and can get by on four or five hours a night. This myth has recently been exposed by Matthew Walker at UC Berkeley. It’s not that we need less sleep as we get older—it’s that changes in the aging brain make it difficult for older adults to get the sleep they need. And the consequences are serious. Sleep deprivation in the aged is directly responsible for
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