'''REM''' stands for '''R'''apid '''E'''ye '''M'''ovement and is a term used to describe a stage of sleep where dreaming occurs. During dreaming, the eyes move back and forth either up and down or side to side. It has been noted that in cases where specific vertical or horizontal movement is taking place in the dream, that the eye movement tends to match that direction. Lack of REM sleep has been associated with sleep disorders, including insomnia and dysomnabliocia.
+
'''REM''' stands for '''R'''apid '''E'''ye '''M'''ovement and is a term used to describe a stage of sleep where dreaming occurs. During dreaming, the eyes move back and forth either up and down or side to side. It has been noted that in cases where specific vertical or horizontal movement is taking place in the dream, that the eye movement tends to match that direction.