Can pink noise help your brain clean itself during sleep? MIT study finds a clue

A small MIT study found that carefully timed bursts of pink noise during sleep can strengthen cerebrospinal fluid waves linked with brain waste removal. Researchers now plan to study whether the technique can improve sleep, memory or help people with conditions linked to harmful protein buildup.

The human brain does some of its clean-up work during sleep, and scientists may have found a way to make that process stronger. A new MIT study suggests that short bursts of pink noise, played at the right moment during sleep, can increase waves of cerebrospinal fluid moving through the brain.

That fluid, known as CSF, helps carry away waste products that build up during the day, including lactic acid and worn-out proteins. The finding is........

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