Sleep
Does Poor Sleep Cause Alzheimer’s Disease?
Does poor sleep cause Alzheimer’s disease? Research strongly suggests yes. A 25-year study of nearly 8,000 people found that persistently sleeping six hours or fewer was associated with a 30 percent higher dementia risk (Sabia et al., Nature Communications, 2021). Sleep deprivation impairs your brain’s glymphatic system, its nightly cleaning cycle that flushes out the […]
Feb 28, 2026
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19 min read
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