About how the "ghost press" woke up on its own. The landlord tells you that it is actually very simple.

The ghost presses the bed, which means that when you sleep, you suddenly feel unconscious but your body can't move. Actually, you have a sleep disorder. The phenomenon of "ghost crushing the body" belongs to a symptom of sleep paralysis in sleep neurology. During sleep, the patient is half awake and half asleep, and the brain waves are awake. Some people will also have hallucinations, but the muscle tension of the whole body is minimized.

pressure

Definition 1: nightmare

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When people are sleeping, they suddenly feel as if there is a thousand pounds of weight on their bodies, and they can't breathe. They seem to wake up and want to shout, but they can't move. It makes people feel puzzled and frightened, as if there is a transparent thing pressing on their bodies, and coupled with dreams, they have been given the name "ghost pressing on their bodies". In fact, this is called "nightmare" in medicine. Like dreaming, nightmares are also a physiological phenomenon. When a person suddenly wakes up from a dream, a part of the nerve center of the brain has woken up, but the nerve center that dominates the muscles has not fully woken up, so even if he feels uncomfortable, he can't move. At this time, if someone wakes him or pushes him, the nightmare will disappear immediately. In fact, this phenomenon is very common. For example, when we just wake up, we can't completely swing our fists; Many people have to wait a few minutes after waking up, which is why the central nervous system works out of sync. Lying on your back, being covered with a thick quilt or putting your hands on your chest, being too nervous during the day and overeating at dinner are all the reasons for nightmares. If readers are careful, they will find that those who are trapped by ghosts are all on their backs. If they sleep on their side and avoid the above incentives, they won't have nightmares. Generally, people trapped by ghosts like to sleep on their backs. Sometimes, just after a dream, you will associate the lack of intuition with the dream. Maybe you are familiar with the term ghost bed. I think people have all kinds of explanations for ghost beds. Growing up, the most authoritative explanation I have heard is also the most "scientific basis", the most supportive and convincing explanation, that is, "You just fell asleep, and you may have inadvertently put your hand on your chest, which aggravated your breathing." Some people are accompanied by hallucinations caused by cold sweat, lack of oxygen and even rapid heartbeat. These are all caused by bad sleep habits. Of course, it does not rule out that some people have sleep problems due to organic diseases, and serious sudden death ... "

Definition 2: Sleep paralysis

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The so-called "ghost pressure" is definitely not a "ghost" pressure bed, let alone a "ghost" obsession. In fact, it is a disease of sleep disorder. The phenomenon of "ghost crushing the body" belongs to a symptom of sleep paralysis in sleep neurology. At this time, the patient is half awake and half asleep, and the amplitude of brain waves is also awake. Some people will also have hallucinations, but the muscle tension of the whole body is minimized, which is similar to the state of paralysis, and the whole body can't move, just like being covered with a golden bell, which is what most people call "ghosts". The patients with cataplexy narcolepsy most often have the condition of "ghosts crushing their bodies". Such patients can fall asleep at any time, showing a state of being half awake and half asleep at any time, and often have "sleep hallucinations" and dream of strange people, things and things. When the patient is awake, whenever he is excited, laughing or angry, he will suddenly feel weak and fall down. Our sleep cycle is from sleep period, shallow sleep period, deep sleep period, and finally into "rapid eye movement period" (dreaming period). Sleep paralysis is mainly due to the early appearance of rapid eye movement, which leads to the inconsistency of rapid eye movement stage. In fact, in the rapid eye movement stage, the body is essentially at rest, and the connection signal with the brain is temporarily interrupted. This is a defensive measure, so that the human body will not realize the dreams in real life. For example, when dreaming of hitting people, it will not really act, and it will not punch and kick people at the bedside. When the sleep nerve is paralyzed, the brain recovers from sleep rest, and it is too late to reconnect with the body, which makes people half asleep and half awake, and dreams are intertwined with reality, resulting in disharmony between the body and the brain. At this time, the whole body muscle tension is the lowest, so it will cause you to remember, but you can't get up; I want to exert myself, but I have no strength at all. This is the most common situation of "ghost pressing the bed". Generally speaking, under the circumstances of excessive pressure, anxiety, tension, extreme fatigue, insomnia, lack of sleep or jet lag, sleep will enter the rapid eye movement stage (dreaming stage) ahead of time, and there will be a situation of "ghost pressing the bed"-sleep paralysis. This happens to people of any age, mostly in adolescence, and few people happen continuously. Unless it happens frequently, you need to seek the help of a sleep doctor. As long as you know this symptom, you don't have to worry too much. According to a research report in the United States, 40% to 50% people will experience sleep paralysis at least once in their lives, and the proportion is not low. Therefore, when you encounter "possessed by ghosts", you don't have to worry, go to the so-called "master" to solve your bad luck. Knowing the truth of sleep can make you feel at ease and sit back and relax. Example: A middle-aged woman often suffers from "ghost crush" and her sleep quality is not good. She thinks that she is under great pressure during working hours and has too much housework after work. Later, she quit her job and reduced housework, but as a result, her sleep did not improve. After the author made a 24-hour multifunctional sleep physiological examination for her, the patient suddenly felt an inexplicable force approaching the whole body when she slept at midnight. The dream was weird and horrible, and she couldn't scream if she wanted to. I want to get up, or open my eyes, but I can't move; I have been shouting in my heart, but I can't say it, and I can't make a sound; The muscles of the whole body are tense and paralyzed, the ears are buzzing, and waves of strength are pressing on the chest. No matter how hard I try, I can't do it. After struggling for a few minutes, I can finally do it slowly until I wake up and find myself sweating all over. The author gave her five "multiple sleep tests". A few minutes before the end of sleep, she suffered from sleep paralysis twice. Suddenly, her whole body kept trembling slightly and she couldn't make any sound. At this time, someone touched her immediately, and she immediately woke up and returned to normal. When this woman doesn't go to see a doctor, she often tells people at the bedside that if she finds out that she has the above situation, she will call her or pat her immediately, so that she will be fine. The above is scientific analysis. Simply put, it is "mentally active and physically exhausted".

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Interpretation of modern medicine

Nightmares are caused by cardiac and cerebral ischemia during sleep. When people have cardiac and cerebral ischemia during the day, they will have terrible symptoms such as dizziness, palpitation, chest tightness, black eyes, tinnitus and various neurological disorders. Therefore, people who are weak and prone to cerebral ischemia, people who have excessive fears, people who take quinidine and cause hypotension, and people who suffer from neck flexion and poor blood flow due to excessive pillows or improper sleeping posture during sleep will have a terrible nightmare called a nightmare in medicine when they sleep deeply at night. Shallow sleep can cause inexplicable panic, which is also commonly known as ghost pressure. Sometimes, people wake up from cerebral ischemia, and the visual and motor disorders that last for a few minutes are not over, which can also cause people to struggle to wake up, but they can't wake up. For example, there is a haunted bed in the countryside, which can make people have nightmares every night, which is caused by the high pillow. Because the nightmares or ghosts during sleep are mostly related to the neck flexion oppression caused by the high pillow or improper sleeping position during sleep. Therefore, there is scientific basis and it is really effective to try to move the neck to improve the ghost in the case of nightmares or ghost pressure. Patients who often have nightmares or have ghost body pressure may wish to give it a try. When people are highly nervous during the day, they will be scared by very small sounds. People sometimes have nightmares because they suddenly seem to hear some kind of loud noise during the process of constantly changing their sleeping positions because of mental stress. This loud noise is obviously caused by the friction between the ear and the pillow when people change their sleeping positions. This kind of "loud noise" that has been neglected for a long time during sleep sometimes becomes very terrible when you are nervous. Abnormal heartbeat or cardiac function during the day can cause cerebral ischemia, and abnormal heartbeat or cardiac function at night can also cause cerebral ischemia. The specific dream is a simple palpitation nightmare of being chased or falling in the air, and then a nightmare (namely cerebral ischemia) occurs. Because the blood vessels around heaven and man expand more in summer than in winter, and the blood pressure of heaven and man is lower in summer, it is more prone to cerebral ischemia (for example, people who stand for too long or squat and suddenly stand up are prone to cerebral ischemia), so people are more likely to have nightmares or ghosts when they sleep in summer. In addition, people will have cerebral ischemic syncope due to strong fear during the day. When people are sleeping, they will also have nightmares or ghosts because of dreams of strong fear caused by simple palpitations. When people have transient cerebral ischemia during the day, they will only have terrible symptoms such as dizziness, palpitation, chest tightness, black eyes and various neurological disorders. In severe cases, there will be symptoms such as sweating, pallor, dilated pupils and even fainting due to loss of consciousness. When people have transient cerebral ischemia during sleep, the same mild symptoms will only produce terrible dizziness, palpitation, chest tightness, black eyes and various neurological disorders. In severe cases, there will be symptoms such as sweating, pallor, dilated pupils and even loss of consciousness. In fact, the medical name of this thing is sleep paralysis, which is commonly known as' ghost bed'. Sleep paralysis usually occurs when people have just fallen asleep or are about to wake up. Patients feel that they have woken up, they can hear the surrounding sounds and see the surrounding images, but their bodies can't move, they can't make sounds, and sometimes they combine hallucinations. Most people will feel panic at this time, but fortunately, this situation will slowly or suddenly restore physical movement within a few minutes. Because of the panic during the attack, many people will feel scared after waking up, always thinking that it is caused by something unknown, so there is a saying that' ghosts press the bed'. In fact, sleep paralysis occurs in the REM stage of the sleep cycle, which is the sleep cycle when we fall asleep and start dreaming. During the rapid eye movement (REM) period, our skeletal muscles are in a state of extremely low tension except the respiratory muscles and the eye muscles. This is a kind of protection, which can prevent us from acting with our dreams and hurting ourselves or people at the bedside. Sleep paralysis is due to the fact that during the rapid eye movement period, the consciousness has awakened, but the muscles of the limbs are still in a state of low tension, which leads to the situation of not listening to the command of consciousness. In fact, sleep paralysis is not uncommon. Many people have experienced it, especially teenagers and young people in their twenties and thirties. Sleep paralysis can be regarded as a normal physiological phenomenon, which has nothing to do with ghosts and has no adverse effects on health. Usually, it is more likely to happen under the conditions of great pressure, excessive fatigue, abnormal work and rest, insomnia and anxiety. Try not to make yourself too tired, don't stay up late, and keeping a normal routine will usually reduce the chance of it happening. However, if the frequency is too high, affecting their quality of life, or combined with daytime sleepiness, they should seek medical help or find out whether there are other problems.