Your brain is quietly washed after falling asleep!
A recent achievement by scientists at Boston University appeared in Science, where scientists photographed the brain’s “brainwashing” process after it fell asleep.
Red blood flows out of the brain periodically, and blue cerebrospinal fluid floods in to clear toxins, including beta amyloid, which causes Alzheimer’s disease (commonly known as Alzheimer’s disease, but not exactly equivalent).
And this can only be achieved while sleeping.
If you are staying up late, there is no way for cerebrospinal fluid to pour in to remove toxins.
”Stuck up late will be stupid” is true!
Staying up late becomes stupid confirmed
In this experiment at Boston University, scientists put 13 people on EEG caps and slept in an MRI machine.
Human sleep is divided into three phases, light sleep, rapid eye movement sleep (REM), and deep sleep.
EEG will show a person’s sleep state; MRI opportunities measure blood oxygen levels and show the amount of cerebrospinal fluid in and out.
The experiment found that: only when asleep, blood will flow out of the brain on a large scale and periodically, and then the cerebrospinal fluid will enter the brain while washing toxins such as beta amyloid.
This is why we always feel refreshed after a good sleep.
During sleep, neurons synchronize their activity, causing the blood oxygen concentration in the brain to change periodically.
And people are not in sleep, the blood in the brain does not flow out periodically on a large scale, the cerebrospinal fluid cannot occupy the brain, and the toxins cannot be washed naturally.
Not only that, but Boston University’s research could help discover how aging affects the flow of blood and cerebrospinal fluid during sleep.
With the deepening of experiments, it will also provide new ideas for the prevention and treatment of diseases such as dementia and autism.
You can’t afford the consequences of staying up late
The young people who are destroyed by staying up late are more than just “stupid”.
A set of data released by the Chinese Sleep Research Association shows that the insomnia rate of Chinese adults is as high as 38.2%, and more than 300 million Chinese have sleep disorders.
Post-90s sleep conditions are even worse. Surveys show that 60% of 90s have sleep problems. China has about 174 million post-90s. According to this ratio, about 190 million post-90s don’t sleep well.
Everyone knows that staying up late is not good for the body, but the moment when unfortunateness falls on them, many people are still lucky.
550,000 people die from sudden death each year in China, and 38.2% of people suffer from various types of sleep disorders.
A man in Wuhan did not sleep for two days and three nights in order to follow the drama. After a few days, I was nauseated, dizzy, and fell to the ground. He found himself unable to hear his voice. After going to the hospital for examination, she was diagnosed with sudden deafness in the left ear. Doctors say that lack of sleep can easily lead to insufficient blood supply to the inner ear, which affects hearing. Most patients with sudden deafness often stay up late.
It’s like burying an untimely bomb in your body. You may not usually feel how much your health is threatened, but stay up late, maybe one day it will erupt and ruin your life.
A Guangdong hospital treated Chen Li, a 24-year-old patient with cerebral hemorrhage.
He often stays up late, feels dizzy, and returns to the dormitory after work one day. Before he feels unconscious, he exhausts his efforts and sends a text message to his cousin for help.
When his cousin and ambulance arrived at his house, Chen Li was completely unconscious.
He was diagnosed with fatal brainstem hemorrhage and mild obstructive hydrocephalus. The doctor could later save him by performing a brainstem hematoma removal.
Studies in the American “Sleep” magazine show that depriving sleep time, the brain produces chemicals similar to when the brain is hit. Therefore, it is not unreasonable to have a headache without sleeping well at night.
The TED talk “Must sleep well, there is an important reason” explained in detail the meaning of sleep for the body and the brain: when the brain is working tightly, the waste accumulated in the interstitial space will always pile up, only during sleep time The waste can be removed.
It’s like doing housework. We put the clean-up room on a weekend without work tasks. If we don’t clean it for a month, the home will be unsuitable for living.
If the brain waste is not cleaned for a long time, the consequences will be much more serious. Not only the unconscious mind, but also various mental illnesses may come to you.
“Reluctant to sleep” is a heart disease
Many people don’t get enough sleep and actually choose to stay up late.
During the day, work and study are stressful, and I am not satisfied with my efficiency in using time, so I always think that I can steal some time in the middle of the night to find it.
It seems that only when I stay up late can I have my own space and feel a sense of satisfaction. But this psychological ritual of self-satisfaction is useless.
First of all, knowing that it is time to fall asleep but not willing to put down the phone is a sign of delay. Jane Knock argues in Procrastination Psychology that procrastination is fundamentally not a matter of time management or morality, but a complex psychological problem.
With the mentality of “broken cans and smashes”, the anxiety is like playing with a child like a child: I just need to swipe my phone until I can’t sleep. This practice will greatly weaken one’s self-control. More importantly, instead of being comforting, it will increase anxiety.
There is always a set work schedule the next day, and the previous night’s rest is not good, and energy will be affected. Fear of the coming of the next day, then at night, then anxiety was covered up by delaying sleep time. What I couldn’t do was that the next day, as promised, I had no energy to bear the consequences of going to bed late.
There is a disease in psychology called DSPD-Sleep Phase Backward Syndrome. This is a chronic sleep disorder. The most prominent manifestation is compulsive late sleep. Unlike patients with insomnia, DSPD patients will still enter deep sleep after falling asleep.
But for those who need to work and live on time, it is like terminal illness.
This is a long-term chronic condition. Patients often let themselves sleep less on weekday nights, but make up on weekends. Such “compensation” further strengthens the sleep phase shift.
The consequence is that it is always late to sleep and wake up later than expected, and it is getting harder and harder to get up in the morning; chronic lack of consciousness, insufficient blood supply to the heart, tinnitus, and pale face … the whole person is not in a state.
Nearly half of the recorded cases of DSPD also have depression or other mental illnesses.
If you want to “abandon the whole world”, if you don’t sleep for a long time, you can only admit that you are an outcast of the world.
How to cope with forced sleep
Most young people’s lack of consciousness has to start with adjusting their mentality. Sleep should be considered a top priority.
The first is to stop the vicious circle, starting from the early days. During the adjustment period, even if you slept late, you still need to get up at seven. Because there is not enough energy during the day, naturally you can stop staying up all night. Fixing the wake-up time several times in succession will make people adjust the biological clock to a healthy state.
But this is just the simplest and rude method. Normal work and rest is not to sleep when you are sleepy, but to develop a habit of feeling sleepy and want to sleep to ensure sufficient sleep time. In order to stimulate yourself, you can choose to arrange some meaningful activities until the next morning.
The second is forcibly diverting attention. Force yourself to turn off your phone and computer before going to bed, give yourself five minutes, close your eyes, and leave your head blank. You may feel bored. But after entering the dormant state, it is not so difficult to rest assured.
The third is exercise or relaxation. After a period of exercise, people will be more excited, but after a moderate amount of exercise, the body will generate a signal that it needs rest, which is very helpful for helping sleep.
The fourth is to learn to choose. Staying up late is actually a gambling practice with healthy credit. There should be a scale in mind, which can measure which value is higher. The night is used for rest. Don’t feel that the time you can’t steal is wasted.
Haruki Murakami has a super short story “Sleep.” The protagonist “I” in the book is a full-time housewife with 17 consecutive days of insomnia. “Insomnia originated from a dream. In the dream, an old man in a tight black jacket lifted a kettle toward ‘I’ and kept pouring water, but ‘I’ could not move.”
She read a book about sleep: ” Human beings unknowingly form their own tendency to act and thought, and once formed, it is difficult to disappear unless unusual circumstances occur. In other words, people live in the cage of such tendencies, and sleep is just It is to neutralize, adjust and treat this bias. ”
”I’m bored in this small box, I ca
n’t go anywhere.” Those who refuse to sleep at night and seem to hold on to something tightly, why not?
Sleepiness is a problem of physiological mechanism, while staying up late is a problem of psychological mechanism.
In reality, we are controlled by the anxiety in our hearts, the body and consciousness are separated, but we have not been spiritually liberated, as if we were stuck in a box, day after day, a vicious circle.