找到个 pre-industrial societies 作息的研究: 1. 冬天会比夏天多睡约一个小时 (53 to 56 minutes) 2. 日落以后约三个半小时 (3.3hr) 入睡 3. 夏天是日出后一小时醒来,冬天是快日出时醒来 https://t.co/1xLYC5lqRD
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A study of two African and one South American hunter-gatherer societies found that individuals generally woke at regular times, usually before dawn https://t.co/J9kD40KLRo
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Another “modern medical” advice going to the bin: 8h monophasic sleep is an invention of industrial society. Natural Sleep and Its Seasonal Variations in Three Pre-industrial Societies: https://t.co/ljB6WPj7mx - Researchers traveled to remote corners o
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RT @GJasienska: Hunter-gatherers don't sleep long https://t.co/Egal4Jdm9E