Non-rapid eye movement (NREM) sleep
Non-rapid eye movement (NREM) sleep is one of the main stages of sleep, characterized by the absence of rapid eye movements. It is further divided into three sub-stages: N1, N2, and N3. NREM sleep typically occurs during the first half of the sleep cycle and is associated with different physiological and brain activity compared to… Read More Non-rapid eye movement (NREM) sleep




