Deep sleep, memory formation go hand-in-hand. Scientists are also finding links to dementia

CBC News

Shift workers sleeping at erratic hours. Students pulling all-nighters. Menopausal women tossing and turning in bed from hot flashes. There are a host of reasons why people have periods of poor sleep. And anyone who’s endured back-to-back nights of sub-par slumber likely knows the result: Feelings of brain fog, grogginess or even memory issues. In the short-term, those cognitive hiccups are usually manageable. Take new parents for instance, says a sleep scientist affiliated with the Canadian Institutes of Health Research. “It can be a couple of years of pretty serious sleep loss, and they still push through,” said John Peever. “But whether or not they could sustain that over many years, I think the answer to that question would be no.” Read more…

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