Sleep – how many hours does the body need per day?

05:38 PM

Friday 09 September 2022

Sleep is very important for the body to relax and recharge the energy it needs during the day, and without enough sleep, we can have issues with our physical and mental health.

Sleep goes through five stages, with Rapid Eye Movement (REM) sleep being the deepest form of sleep, which will help make sure your energy levels are full and ready to get you working.

Read also: 5 foods that help you relax and sleep

What is rapid eye movement (REM) sleep?

REM sleep, as its name suggests, is characterized by rapid, random eye movement.

During a good night’s rest, people go through a cycle of different sleep stages, including four to five periods of REM sleep.

REM sleep usually begins about 90 minutes after sleep, which is short at the beginning of the night and long at the end.

The body and brain go through many changes in REM, including irregular refraction, increased heart rate and blood pressure, changes in body temperature, shivering, brain activity similar to wakefulness, and sexual arousal.

How much rapid eye movement (REM) sleep do we need at night?

Humans need deep sleep to repair their muscles – and even superficial wounds heal faster during deep sleep.

For an average adult person needs between seven and nine hours of sleep, and deep sleep usually constitutes between 15 to 25% of the total sleep time, and therefore the individual should sleep about 1.5 hours at least in deep sleep, including movement Quick eye.

What are the other stages of sleep?

Non-rapid eye movement 1: very light sleep or awake.

Non-rapid eye movement 2: a little deeper sleep, with lower body temperature and heart rate.

Non-rapid eye movement 3 and 4: deep sleep, where the muscles relax completely and the body repairs and grows tissues.

As for rapid eye movement, which is the stage in which the sleeper sees dreams, this period constitutes the last third of the sleep cycle.

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