I don't know if you've ever experienced it. When you go to bed at night, sometimes you're half awake. You're conscious, but you can't control yourself. You want to get up, but you can't get up at all. Sometimes you can even see some images, which makes you very scared. The old people often say that it's because of the ghost. Is it true that there is a ghost to press the bed? Which people are easy to be pressed by the ghost?
Ghost pressure bed, refers to sleep when suddenly conscious but the body can not move, in fact, suffering from sleep disorders. The phenomenon of "ghost pressing on the body" belongs to the symptom of sleep paralysis in sleep Neuromedicine. When patients sleep, they present the situation of half awake and half asleep. The brain wave is the amplitude of awake. Some people will have the illusion of images, but the muscle tension of the whole body will be reduced to the lowest level.
"Ghost pressure bed" is just a kind of sleep phenomenon, it shows that your sleep quality is not good. In the Journal of neuroscience, Dr. Kevin Nelson, a neurophysiologist at the University of Kentucky, published his latest research results on this phenomenon. Nelson explained that REM sleep disturbances usually occur when people are half asleep and half awake or when they are just awake but not fully awake. In some clinical diagnosis, some diseases also cause REM sleep, such as Parkinson's disease.
The symptoms of "ghost crushing bed" are often reflected in three aspects: vision, hearing and body feeling. Dr. Nelson summed up four phenomena in his investigation: when you are half awake, you see people or things that others can't see; you hear voices, music or noises that others can't hear; you feel powerless, paralyzed and unable to move (sleep paralysis); you suddenly feel weak legs or knees. These four situations sometimes appear separately and sometimes together. These symptoms are called "ghost crushing the bed".
Many people don't understand "ghost pressing bed", so they blame it on superstition and think it's caused by ghosts, but in fact, the emergence of "ghost pressing bed" has medical basis. According to reports, "ghost press bed" has a professional term in medicine, which is called sleep paralysis. Sleep paralysis usually occurs in the period of rapid eye movement, which is often accompanied by dreams. It is a stage in the sleep cycle. When the human body is in the period of rapid eye movement, the skeletal muscles except the respiratory muscles and the ophthalmic muscles are in a state of extremely low tension, but this is actually a kind of self-protection, which can avoid people in the sleep state to make actions with the dream and hurt themselves or the pillow side people. Sleep paralysis is the stage of rapid eye movement. For some reasons, although the consciousness has recovered, the muscles of the body are still in a low tension state, so it is easy for the body to disobey the command of the consciousness.
Is there a ghost in the bed
Ghost pressure bed, also known as the third kind of biological pressure bed or primate events.
Sleep paralysis, commonly known as "ghost pressure on body" and "ghost pressure on bed", is a sleep related disease. The patient can clearly feel the surrounding environment, but the body doesn't listen to his own call, can't move, can't speak, can't open his eyes, sometimes there may be corresponding dreams, and some people may even have hallucinations. Sleep paralysis can be divided into two types: sporadic type and familial type. Familial type is more common in women than in men, but most of them are sporadic type. According to a US study, between 40% and 50% of people experience sleep paralysis at least once in their lives. There is a certain period of sleep. The sleep cycle is sleep period, light sleep period, deep sleep period, rapid eye movement period (dream period), and then enter the next cycle. The main reason of sleep paralysis is the early occurrence of rapid eye movement, which leads to inconsistent coordination in the rapid eye movement stage. Many people have a feeling that when they just fall asleep or wake up, they are awake, but they find that their bodies cannot move and their eyelids cannot be opened. This is caused by the asynchrony of consciousness and body.
Lying on the back, covered with thick or hand on the chest, over tension during the day, and over satiety at dinner are all the causes of ghost pressure on the bed. If the audience is careful, it will be found that those who have experienced "ghost pressure" are all supine. If they sleep sideways and avoid the above incentives, ghost pressure will not occur.
What are the vulnerable groups of ghost pressure bed
According to some data, more than 50% of people have experienced sleep paralysis, and the frequency of sleep paralysis in non Nigerian Africans is higher than that in white people. Scientists have determined that the symptoms are related to life stress, which occurs in teenagers and young people. This kind of people usually have too much life pressure, irregular work and rest time, often stay up late, insomnia and anxiety, these factors are likely to cause sleep paralysis.
In addition, patients with narcolepsy often suffer from ghost pressure. This is a syndrome with unclear etiology, which is characterized by abnormal sleep tendency, including excessive daytime sleepiness, nocturnal sleep restlessness and pathological REM sleep. This kind of sleep disorder with unknown cause is mainly manifested in long-term decreased alertness and paroxysmal irresistible sleep. Most patients have one or several other symptoms, including cataplexy, sleep paralysis and sleep hallucination, so it is also called paroxysmal sleep tetralogy.