Mark Ingalls on Nostr: BBC: The forgotten medieval habit of 'two sleeps' When Ekirch expanded his search to ...

BBC: The forgotten medieval habit of 'two sleeps'

When Ekirch expanded his search to include online databases of other written records, it soon became clear the phenomenon was more widespread and normalised than he had ever imagined.

https://www.bbc.com/future/article/20220107-the-lost-medieval-habit-of-biphasic-sleep

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