Have you felt you’re slowly losing memories?
This could be due to a lack of good sleep, especially Rapid Eye Movement (REM) Sleep.
During the first part of the night, we spend most of our time in deep sleep (also called slow wave sleep). This is where our brains process information and memories. The second half of the night is spent in Rapid Eye Movement (REM) sleep, where one of the functions during this stage is for our bodies to repair themselves.
Therefore, we’ll cover REM Sleep functions today to help you better understand the importance of it. You can also get a sleep tracker to better understand your sleep patterns.
Rapid Eye Movement (REM) Sleep, which was first defined in 1953, is a sleep stage where we dream and develop our memories, learning and problem solving.
Originated in the brain stem, electrical and chemical activities are regulated in this phase.
It’s also associated with random rapid movement of eyes and low muscle tone throughout the body.
Typically, REM Sleep happens around 90 minutes into the sleep cycle.
It’s part of our whole night’s sleep, along with the other four non-REM Sleep stages by happening after them.
Our full night of sleep involves these five sleep stages multiple times, where the period of REM Sleep recycles once every 90 to 120 minutes.
Each stage of sleep happens in the following sequence:
The first stage of sleep is called light sleep. During this phase, your body temperature drops slightly. You may often wake up during this stage because the brain sends signals to your muscles telling them to move.
During this stage, there is muscle tone present in the skeletal muscles. You also tend to breathe at a regular rate at this stage.
Stage 2 follows Stage 1 and usually means deeper sleep, but it’s still considered as light sleep. You are less likely to get woken at this stage.
During this stage, your heart rate and breathing regulate, your body temperature goes down, your eye movement slows down until it completely stops, your muscles tend to relax.
Even though stage 3 is considered as deep sleep, it still acts as the transition between deeper sleep (stage 4) and REM sleep (stage 5), in which your body temperature starts to rise.
At the same time, your brain waves slow down in stage 3 where your muscles relax and breathing slows even more. It’s also harder to wake up and we might feel at loss of direction if the alarm rings. Research has used loud noises that are over 100 decibels but still couldn’t awake participants that were in deep sleep.
In stage 4 of non-REM sleep, we are in deep sleep where our brain waves further slow down. In this stage, your body starts tissue repair and growth, same as your muscles, because your blood flow increases to the muscles. Besides that, the hormone for growth is released.
You may experience multiple changes in your body and mind during this phase:
We all know sleep is very vital to our wellness and overall functioning. REM Sleep, as part of the entire sleep process, functions of REM Sleep include emotional regulation, dreaming, memory consolidation, and brain development.
As an adult, the amount of time spent in REM Sleep varies from person to person. Scientists all agreed that 7-9 hours of sleep is needed among adults, yet they haven’t concluded about the average time of REM Sleep; some say adults need around 2 hours of REM Sleep each night.
However, REM Sleep is more common among infants and children. For instance, newborn babies typically spend 8 hours a day in REM Sleep. Since this sleep stage may be responsible for brain development, that explains why infants require higher levels of REM Sleep than adults.
Many studies showed REM Sleep deprivation can cause memory loss and hard to learn since REM Sleep deprivation interferes with your brain’s ability to generate new cells.
Besides that, lack of REM Sleep can also:
One of the first steps to improving your sleep is to make sure you’re getting enough quality sleep. This means going to bed at a reasonable hour (ideally between 9 p.m. and 11 p.m.), waking up naturally without an alarm clock, and avoiding caffeine and alcohol before bedtime. You should also avoid napping during the day because it disrupts your body’s natural circadian rhythm.
If you want to get more quality sleep, try going to bed earlier than usual. Research shows that people who go to bed at 10 p.m. tend to wake up around 7 a.m., while those who go to bed at midnight wake up between 8 and 9 a.m.
You can also try to track your sleep to better understand your sleep patterns, in order to improve quality sleep. Sleep trackers, like Go2Sleep, can be your fit, by providing rich data with reasonable pricing. Named as the best value sleep tracker of 2022, Go2Sleep collects data of heart rate, blood oxygen level, AHI (apnea-hypopnea index) to give you a basic understanding of your sleep. It also gives you a sleep score so you can have a straight sense of your sleep health.
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