A Burst of 'Pink Noise' May Lead to More Restorative Sleep

A burst of “pink noise” may lead to more restorative sleep

During sleep, exposure to short bursts of a staticky sound called “pink noise” can strengthen waves of cerebrospinal fluid, which clear debris from the brain, according to new research.

Pink noise boosts brain waste clearance during sleep

During the day, waste products such as lactic acid and worn-out proteins build up in the brain. When we sleep at night, waves of cerebrospinal fluid (CSF) help to wash away this waste, keeping the brain healthy.

A burst of 'pink noise' may lead to more restorative sleep

During the day, waste products such as lactic acid and worn-out proteins build up in the brain. When we sleep at night, waves of cerebrospinal fluid (CSF) help wash away this waste, keeping the brain healthy.

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.