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Natural Sleep and Its Seasonal Variations in Three Pre-Industrial Societies | Better HN
Natural Sleep and Its Seasonal Variations in Three Pre-Industrial Societies
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jeeshan
10y ago
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dang
10y ago
Lots of submissions about this recently, including
https://news.ycombinator.com/item?id=10397408
and
https://news.ycombinator.com/item?id=10401640
.
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