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The forgotten medieval habit of 'two sleeps' - BBC Future

#habit #health #history #medieval #sleep #story | <blockquote>For millennia, people slept in two shifts – once in the evening, and once in the morning. But why? And how did the habit disappear?</blockquote>

3 years ago | View Shared by victor
How to Sleep - The Atlantic

#caffeine #health #science #sleep | <blockquote>Should you drink more coffee? Should you take melatonin? Can you train yourself to need less sleep? A physician’s guide to sleep in a stressful age.</blockquote>

8 years ago | View Shared by victor