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(Science Magazine)   "Coupled electrophysiological, hemodynamic, and cerebrospinal fluid oscillations in human sleep"   ( divider line
    More: Obvious, Brain, rapid eye movement sleep, slow waves, neural activity support memory consolidation, human brain, functional magnetic resonance, low-frequency oscillations, neural activity  
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198 clicks; posted to Geek » on 05 Nov 2019 at 3:18 PM (11 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»

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2019-11-05 03:34:36 PM  
Sleep is essential for both cognition and maintenance of healthy brain function. Slow waves in neural activity contribute to memory consolidation, whereas cerebrospinal fluid (CSF) clears metabolic waste products from the brain.

So, the "defragging" simile is covered, here. Still pretty cool.
2019-11-05 04:30:36 PM  
The human brain is so powerful it can only be run for a few hours at a time.
2019-11-05 04:57:48 PM  
TL/DR: The brain, only during periods of very deep sleep, actually sends pulses of cerebro spinal fluid to flush the brain clean of waste products. This is also important, as it sheds light on Alzheimers and the role sleep plays (or lack thereof) contributing to the disease.
2019-11-05 07:33:09 PM  
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