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Study Reveals: Sleeping Over 9 Hours May Impair Cognitive Function

Study Reveals: Sleeping Over 9 Hours May Impair Cognitive Function

A study from the United States indicates that sleeping more than 9 hours each night could lead to a decline in cognitive abilities and accelerate brain degeneration, particularly evident in patients with depression. The research analyzed 1,853 participants aged 27 to 85, suggesting that excessive sleep might hint at underlying health issues such as sleep apnea or chronic insomnia.

Experts from Taipei Medical University recommend maintaining a sleep log to determine individual optimal sleep durations. Proper sleep contributes to brain detoxification and bodily repair, but both insufficient and excessive sleep require careful adjustment.