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▬ from [[sleep-and-cognition]]

Sleep is not a lifestyle variable that trades against productivity — it *is* productivity, read on a longer time horizon. The research covered here establishes three claims that, taken together, should reshape how anyone thinks about high performance. First, sleep deprivation degrades cognitive, motor, and emotional performance at effect sizes that rival or exceed the worst acute medical events measured in performance research (Pilcher & Huffcutt 1996). Second, the mechanism is not generalized fatigue but specific neural disruption — particularly in the prefrontal cortex, which governs exactly…

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