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the participants were given just five hours of sleep before being put in front of the camera,
There is a factual error. Five hours and 31 hours of wakefulness,
"Participants were photographed after a normal night’s sleep (eight
hours) and after sleep deprivation (31 hours of wakefulness after a
night of reduced sleep). The photographs were presented in a randomised
order and rated by untrained observers."
https://www.bmj.com/content/341/bmj.c6614
Sergei’s 2025 Year in Books
Take a look at Sergei’s Year in Books, including some fun facts about their reading.
75 books
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28 friends
1,165 books
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57 books
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123 books
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