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

    7 days ago - By ScienceDaily

    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.
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