Deep sleep drives brain fluid oscillations
Getting enough quality sleep at the right times helps protect physical and mental health. Slow-wave sleep (SWS) represents high-intensity sleep and predominates in the first part of the night. Rapid eye movement (REM) sleep accompanies dreaming and is not influenced by prior sleep or waking and shows a rhythmicity with the body clock (circadian rhythm) ([ 1 ][1]): Sleep starts with a light form…