News Neuroscience

Sleep may trigger rhythmic power washing in the brain

Waves of fresh cerebrospinal fluid could help clean out harmful proteins

man sleeping

Powerful waves of cerebrospinal fluid roll into the brain during non-REM sleep, a study finds.

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By Laura Sanders

- More than 2 years ago

Every 20 seconds, a wave of fresh cerebrospinal fluid rolls into the sleeping brain. These slow, rhythmic blasts, described for the first time in the Nov.