Deep non-REM sleep cleans your brain.
Remember the glymphatic system?
(If not you clearly haven’t read our blog post on why alcohol can be good for you 😉). A new study published by Science Advances indicates that the slow and steady brain activity associated with deep non-REM are optimal for the function of the glymphatic system (the brain’s unique process of getting rid of waste, in case you needed a reminder).
But how do we know this?
Six groups of anaesthetised mice were studied in this research. While they were sleeping, the researchers tracked brain electrical activity, cardiovascular activity, and the flow of CSF through the brain. The mice that had a sleep pattern closely resembling deep non-REM were found to have the most active glymphatic systems.