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The Sleepy Scientist
What Your Brain Does While You Sleep | The Sleepy Scientist
A calm, two and a half hour tour through modern sleep science: the circadian clock and sleep pressure that decide when you get tired, the brainstem circuitry that flips the brain from waking to sleeping, the NREM and REM architecture of a night, what each stage does for memory, forgetting, and emotion, why dreams feel so convincing, the glymphatic system that may wash metabolic waste from brain tissue during sleep, and how all of it changes across a lifetime. It names its sources throughout, from Hans Berger's first EEG to Maiken Nedergaard's glymphatic research, while keeping careful about what is established versus still being studied.