A Day Without Sleep, All Systems
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Tracing sleep loss means following one deprived day through attention, working memory, consolidation, emotional regulation, stress hormones, and performance.
One person's day after a night without sleep, hour by hour: the attention lapses that go unnoticed, the working memory load that stops being manageable, the material studied that will not consolidate tonight, the stress response that is already elevated at breakfast, the arousal level meeting a task whose optimum is lower, and the emotional reaction at four in the afternoon that would not have happened at ten. Ends by naming what recovers with one night of sleep and what does not.
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