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Cerebrospinal fluid sweeps through tissue spaces to remove toxic proteins. The figure is taken from NIH, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

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The brain flushes metabolic waste products while you sleep

Cerebrospinal fluid sweeps through tissue spaces to remove toxic proteins

During deep sleep, the brain's glymphatic system opens channel pathways allowing cerebrospinal fluid to wash rapidly through brain tissue. This nocturnal clearing process removes metabolic waste products, including beta-amyloid proteins that accumulate during waking hours.

Where this comes from

NIH

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Science trivia Sleep Calculator

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Tags: brain, sleep, waste

The brain flushes metabolic waste products while you sleep: the short answers

Where does this come from, and can I check it?: Cerebrospinal fluid sweeps through tissue spaces to remove toxic proteins. The figure is taken from NIH, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a human body fact?: Yes. It sits on the Human Body shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.