Translations:Scheduling overview/3/en: Difference between revisions
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Latest revision as of 00:49, 6 April 2025
Sleep is a complex phenomenon that causes physiological changes all over the body. However, it mainly affects the brain. According to the electrical activities in the brain, sleep is divided into rapid-eye movement (REM) and non-REM (NREM) stages. NREM sleep is further divided into three stages according to the frequency and amplitude of brainwaves.
