As we sleep, our brain moves through four stages and two phases: non-rapid eye movement (NREM) and rapid eye movement (REM). The brain has four stages within the NREM phase. Each stage and phase ...

REM sleep goes even deeper into brain recovery, dreaming and processing memories and emotions. This is the sleep stage in ...

Caffeine shifts brain activity during sleep by increasing EEG complexity and reducing long-range temporal correlations, ...

DARIEN, IL — New research reveals that lower proportions of specific sleep stages are associated ... of time spent in slow wave sleep and rapid eye movement sleep had smaller volumes in critical ...

Sleep is manually classified into five stages, which are wake, rapid eye movement (REM) sleep and three stages of non-REM sleep. The study published in the IEEE Journal of Biomedical and Health ...