What are the stages of sleep? What happens during each stage of sleep? Why do we need sleep? What are some of the reasons that people have difficulty with sleep? Sleep often results in dreams that we...

Assignment on Stages of Sleep
5 different stages of sleep exist. From Stage 1-4, non-REM sleep exist while last stage is REM sleep. Stage 1 starts with light sleep in which individual can be drifted in and out of sleep. Stage 2 gradually sees the movement of eyes to stop. In Stage 3, brain waves can be observed, and person goes to deep sleep. Stage 4, deep sleep persists. In Stage 5, person goes in REM sleep where waking state is mimicked by the brain ways. (Foulkes,1962).
Sleep is required to maintain an optimum health level and wellbeing of person. There are critical functions that happens during sleep. The process of solidification and consolidation of...