Body & HealthFact

During sleep, your brain rinses itself out.

The brain tissue itself has no lymphatic vessels. Instead the brain pumps cerebrospinal fluid through the tissue and flushes waste away, the glymphatic system. Experiments on mice in 2013 showed that during sleep the space between cells widens by about 60 percent, and beta-amyloid, a protein waste product, was cleared roughly twice as fast as while awake.

Useful: One reason sleep isn't just rest but active maintenance.

Source: doi.org

Gehirn Schlaf

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