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A recent study published in Alzheimer’s & Dementia suggests a link between delayed REM sleep and early Alzheimer’s disease. Participants with dementia took significantly longer to reach the REM stage compared to those without the condition, and had higher levels of amyloid and tau proteins associated with dementia development. The study highlights the importance of REM sleep in memory consolidation and suggests that disruptions in this stage may impact cognitive function, although further research is needed to explore this association.
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