Extensive neuroscience literature supports the direct link between sleep duration and quality and interstitial waste removal in the brain, operating primarily through the glymphatic system.
The claim states that sleep duration directly correlates with interstitial waste removal in the brain. Multiple peer-reviewed papers confirm that glymphatic clearance is heavily dependent on the sleep-wake cycle, operating most actively during sleep, and that sleep deprivation or disruption directly impairs this waste removal process. There are no papers contradicting this well-established physiological relationship.