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by notlisted 967 days ago
Cause and effect is also questioned in (much larger) studies: https://www.healthline.com/health-news/the-surprising-link-b...

Interesting quotes:

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The study found that []longer[] time spent in bed (TIB) was associated with significantly []increased[] dementia risk. Those in bed for more than 8 hours were far more likely to show a cognitive decline during a Mini Mental State Examination (MMSE)

[...]

The time individuals went to bed was also highlighted by researchers as a critical contributing factor [...] The research paper stated that “every 1 hour advance in bedtime [before 10 pm] was associated with a 25% increased risk of dementia.”

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