Rapid Eye Movement (REM) sleep

Rapid Eye Movement (REM) (REM) Sleep is a stage of sleep characterized by rapid movement of the eyes, increased brain activity, and decreased muscle tone. REM sleep is one of the five sleep stages, along with stages 1-4 of non-REM sleep.

REM sleep

Importance of REM sleep

REM sleep is important for several functions, including: Consolidation of Memories: During REM sleep, memories are strengthened and consolidated, enhancing learning and memory. It is believed that REM sleep plays a role in regulating emotions, thereby reducing stress and anxiety.

A sample hypnogram showing sleep cycles characterized by increasing paradoxical (REM) sleep.

Dreaming

The majority of dreaming occurs during REM sleep, and it is thought that dreaming helps to process and integrate emotions and experiences from the day. Furthermore, REM sleep is essential for overall health and wellbeing. Those who do not receive sufficient REM sleep may experience a variety of issues, including:

Daytime sleepiness

• Lack of REM sleep can lead to feelings of fatigue and decreased alertness during the day.
• Mood Disorders: Individuals who do not get enough REM sleep are at a higher risk for mood disorders such as depression and anxiety.
• Cognitive Impairment: REM sleep is important for cognitive functioning, and a lack of REM sleep can lead to problems with memory, attention, and decision-making.

Normal amount of sleep

It is recommended that adults get between 7-9 hours of sleep each night, with a significant portion of that time spent in REM sleep.

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Also see

• Rapid_Eye_Movement_%28REM%29_sleep (WikiMD)
• Rapid_Eye_Movement_%28REM%29_sleep (Wikipedia)

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