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Bursts of ‘pink noise’ during sleep seem to help clear waste from brain
The human brain flushes out waste products while we sleep and now it seems that certain sounds might enhance the process
Summary
Sleeping while listening to bursts of pink noise – background sounds akin to gentle radio static – seems to boost the flow of fluid through the brain, and so might enhance the clearance of waste products that are linked to conditions like Alzheimer’s disease. The pink noise seems to bolster the slow brainwaves that enhance the pumping of blood vessels, which drives the brain’s waste-disposal system.
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