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Natural Sleep and Its Seasonal Variations in Three Pre-Industrial Societies
- dang 11y agoLots of submissions about this recently, including https://news.ycombinator.com/item?id=10397408 https://news.ycombinator.com/item?id=10397408 and https://news.ycombinator.com/item?id=10401640 https://news.ycombinator.com/item?id=10401640.