@dataverseloop: You fall asleep... but your brain doesn't simply shut down. It moves through changing biological states — from light sleep to deep NREM sleep, then REM, where brain activity becomes remarkably dynamic while most voluntary muscles become quiet. Meanwhile, your breathing, circulation, hormones, memory-related brain activity, and internal clock continue changing throughout the night. And by morning... your brain has to reverse the entire process. This is what one night of sleep looks like from INSIDE the human body. #SleepScience #Neuroscience #HumanBody #BrainTok #MedicalAnimation

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Tuesday 25 August 2026 14:22:48 GMT