What Goes On In Your Body During REM Sleep?
Although we experience sleep as one event, it actually happens in stages. When we sleep, our body goes through different stages. These stages are what we call the “stages of sleep” or “the sleep cycle”. The sleep cycle has four stages; three stages of Non-Rapid Eye Movement (NREM sleep) and one stage of Rapid Eye Movement (REM sleep). These stages continue to go on in loops throughout the night.