# Decreased deep sleep linked to early signs of Alzheimer's disease

**URL:** <https://archive.menshealtharchive.com/t/decreased-deep-sleep-linked-to-early-signs-of-alzheimers-disease/1542>\
**Category:** Research Database\
**Created:** [January 10, 2019, 12:00am UTC](https://archive.menshealtharchive.com/t/decreased-deep-sleep-linked-to-early-signs-of-alzheimers-disease/1542 "2019-01-10T00:00:51Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![menshealtharchive](https://yyz1.discourse-cdn.com/flex035/user_avatar/archive.menshealtharchive.com/menshealtharchive/32/587_2.png) [@menshealtharchive](https://archive.menshealtharchive.com/u/menshealtharchive)\
**Post date:** [January 10, 2019, 12:00am UTC](https://archive.menshealtharchive.com/t/decreased-deep-sleep-linked-to-early-signs-of-alzheimers-disease/1542/1 "2019-01-10T00:00:51Z")

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> **[Decreased deep sleep linked to early signs of Alzheimer's disease: Toxic brain...](https://www.sciencedaily.com/releases/2019/01/190109142704.htm)**
>
> Researchers have uncovered part of the explanation for why poor sleep is linked to Alzheimer's disease. They found that older people who have less slow-wave sleep -- the deep sleep you need to consolidate memories and wake up feeling refreshed...

  
Researchers have uncovered part of the explanation for why poor sleep is linked to Alzheimer’s disease. They found that older people who have less slow-wave sleep – the deep sleep you need to consolidate memories and wake up feeling refreshed – have higher levels of the brain protein tau. Elevated tau is a sign of Alzheimer’s disease and has been linked to brain damage and cognitive decline.