Habit of nap­ping linked to de­men­tia

The Scotsman - - News Digest -

Peo­ple who of­ten take a nap dur­ing the day are more at risk of de­vel­op­ing de­men­tia, sci­en­tists be­lieve. Those who like a day­time snooze tended to have more tau pro­teins that form tan­gles in the brain, caus­ing de­men­tia. And a lack of deep sleep fuels rogue pro­teins in the brain that de­stroy neu­rons, say sci­en­tists.

A study of more than 100 older peo­ple found those not get­ting enough “qual­ity” shut-eye also had more tau, lead­ing to mem­ory loss and con­fu­sion. It is deep, restora­tive slow wave sleep that is es­sen­tial.

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