When winter comes quietly, people seem to become more prone to fatigue and sleepiness!
Recently, the editor has heard many people say, "I slept very full every day, why are I still so sleepy? What's even more puzzling is that I'm more sleepy after waking up than before I rest!"
Today, the editor will take you to solve this doubt and learn about the "sleep" of this friend who has accompanied us for life.
Almost one-third of our time every day is spent in sleep. When we enter a sleep state, it seems that we have entered another world. Our brain wave gradually replaces the β wave when awakened by α wave. Psychologists divide the sleep process into five stages:
st stage: sleeping period
At this stage, people begin to feel drowsy, breathing and heart rate slow down, and their bodies gradually relax, but they are also easily disturbed by external sounds. This state will last for about 10 minutes.
Stage 2: Light sleep period
After entering this stage, the body's breathing and heart rate become slower, the muscles are more relaxed, and the sleeper is no longer easily awakened, and the consciousness is slowly separated from the surrounding environment. This state will last for about 20 minutes.
stage 3: Sleeping period
In this stage, the human body's heartbeats slowly, the brain wave speed is very slow, but the fluctuations are large, lasting about 20 minutes.
stage 4: Deep sleep period
The muscles of the human body are completely relaxed at this time, their consciousness is free, and their breathing becomes long and difficult to wake up.
At this stage, the human body enters a state of real rest and relaxation. This stage is the golden period for the growth and development of young children and adolescents, and is an important period for adults to recover their physical strength and energy, and will last for about 40 minutes.
However, because the body is extremely relaxed at this time, people often experience sleeping, sleepwalking, , bedwetting (mostly referring to children).
stage 5: Rapid eye movement sleep (rapid eye movement sleep, referred to as REMs)
This stage is also called the active sleep period. At this time, the frequency of brain waves becomes faster, the amplitude becomes lower, the heart rate increases, the blood pressure increases, and the muscles are relaxed.
If you observe the person sleeping at this time, his eyes will move around. If the individual wakes up or is awakened at this time, most people will say that they are dreaming, which is why many people sometimes remember the content of their dreams very clearly.
REM is an important feature of the fifth stage of sleep and an important basis for psychologists to study dreaming.
The entire cycle of sleep will go through these five stages, with a duration of about 90-100 minutes, and people will go through about 4-5 sleep cycles every night.
people with neurasthenia often wake up during the light sleep period. Since the human body fails to enter the deep sleep period and the deep sleep in the period, the body will not be repaired and rested.
If you are in a light sleep period for a long time, the deep sleep period is relatively short, which will seriously affect the quality of sleep.
Why is it that sleeping too much and sleepy?
A large part of the reason is that the sleep quality is degraded due to incomplete sleep cycles. When a person in the deep sleep period is forced to wake up (such as an alarm clock), it is difficult for the body to go from extreme relaxation to immediately return to a waking state.
If you are anxious recently due to sleep quality problems, you might as well try the following method:
First, ensure that the sleep environment is comfortable, the light is soft, and try to be free of noise. You can also soak your feet before going to bed and listen to some soft music to achieve the purpose of sootheing nerves and relaxing muscles.
Next, 90 minutes is a sleep cycle, and you can sleep for 4 or 5 cycles. For example, you need to get up early at 6 o'clock the next day, so you can go to bed at 10:30 the night before, which is exactly 5 cycles. A complete sleep cycle can help the body replenish its energy.
After persisting for one to two weeks, you will feel the subtle improvement of sleep quality.
I hope that in this winter, everyone can immerse themselves in the gentle hometown and have a beautiful dream!
