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🇺🇸 POOR SLEEP SHRINKS BRAIN AND RAISES ALZHEIMER'S RISK New research shows that spending less time in slow wave and REM sleep is tied to brain shrinkage in regions affected early in Alzheimer’s. Over 270 adults were tracked for 13 to 17 years. Less deep sleep meant smaller volumes in the inferior parietal cortex—a region vital for memory. Gawon Cho, public health researcher: "Reduced neuroactivity during sleep may contribute to brain atrophy, thereby potentially increasing the risk of Alzheimer’s disease." Even after adjusting for health and lifestyle factors, sleep remained a powerful predictor. The study suggests improving sleep quality might help delay or reduce Alzheimer’s risk. Source: Neuroscience News