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Segmented Sleep (Biphasic)
Circadian Rhythms Miscellany
Insomnia Remedies 2023 to Now

humans usually slept in two segments until recently      web

webhttps://theconversation.com/why-we-used-to-sleep-in-two-segments-and-how-the-modern-shift-changed-our-sense-of-time-267909
authorDarren Rhodes
publicationThe Conversation
date2025-10-28

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