In a Study on Mice, Scientists Show How the Brain Washes Itself During Sleep, 2025

K

kushami

Senior Member
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534
Quote from Smithsonian article:

The new study reveals that, during a mouse’s non-rapid eye movement (non-REM) sleep, the brainstem releases waves of norepinephrine (a known hormone similar to adrenaline) about every 50 seconds, which causes blood vessels to tighten. This also creates a pulsing pattern, which generates oscillating blood volume, that, in turn, drives the brain fluid flow that washes away the toxins. Simply put, the norepinephrine triggers a pump-like effect that pushes fluid around the brain to rinse waste buildup.
 
BrightCandle

BrightCandle

Senior Member
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1,220
This might be why I don't have much REM sleep. I had thought it was because I wasn't deep sleeping properly but there has been some evidence we don't appear to be clearing the brain properly it may be holding onto deep sleep for longer to try and get more blood flow but it can't produce the norepinephrine.
 
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