Normal dream activity is one of the important factors to ensure the normal vitality of the body.
Scientists have done some experiments to stop people from dreaming. That is to say, when the sleeper has a dream brainwave, he is immediately awakened to stop his dream from continuing, and so on. The results show that deprivation of dreams will lead to a series of physiological abnormalities of human body, such as blood pressure, pulse, body temperature and skin electrical response ability, and the function of autonomic nervous system will be weakened. At the same time, it will also cause a series of adverse psychological reactions, such as anxiety, tension, irritability, perceptual hallucinations, memory disorders, irritability and so on. Obviously, normal dream activity is one of the important factors to ensure the normal vitality of the body.
Dreams are a way to coordinate the balance of human psychological world.
Because the right hemisphere is dominant when dreaming and the left hemisphere is dominant after awakening, the dynamic balance between nerve regulation and mental activity can be achieved by alternately waking up and dreaming during the 24-hour day and night activities of the body. Therefore, dreams are a way to balance people's psychological world, especially for people's attention, emotions and cognitive activities.
Dreamless sleep is not only of poor quality, but also a sign of brain injury or disease.
Recent research results also confirm this view, that is, dreams are the result of the brain's regulatory center balancing various functions of the body, and dreams are the need for the healthy development of the brain and maintaining normal thinking. If the brain's regulatory center is damaged, dreams will not form, or only some incomplete dream fragments will appear. If you sleep for a long time without dreams, it is worth people's vigilance. Of course, if you have nightmares for a long time, it is often a sign of weakness or some diseases.
Dreaming is a physiological phenomenon, but some people think that dreaming is a bad thing. Dreaming prevents them from getting enough rest, which will damage their brains after a long time. In fact, this kind of worry and panic is unnecessary.
Sleep is a physiological phenomenon, through which the whole body can get a full rest. Dreams are also a physiological phenomenon during sleep, and sleep and dreams are as inseparable as the relationship between people and shadows in the sun. Generally speaking, sleep can be divided into two States, one is slow-wave sleep and the other is fast-wave sleep. After falling asleep, people must go through slow-wave sleep before they can turn to fast-wave sleep, and then these two sleep States will appear alternately for 4 ~ 6 times. Each slow-wave sleep lasts about 60 ~ 90 minutes, and the fast-wave sleep lasts about 15 minutes. The EEG of these two sleep States is very different. It is generally believed that dreams are generated in the state of fast wave sleep. If you wake up at this time, you will say that he is dreaming, and the content is vivid and bizarre, and the memory is clear; If you wake up in slow-wave sleep, few people say that you are dreaming. It can be seen that dreaming is the normal activity of the brain during sleep. Under normal and healthy conditions, dreaming is harmless and will not affect other parts of the brain. Because the memory of dreams varies greatly among individuals, some people say that he has never dreamed, but in fact he forgot.
Dreaming is good for people. Professor Koth huber, a German neurologist, believes that dreaming can exercise the function of the brain. He said that only some brain cells are active at ordinary times, that is, during intense mental work, only some brain cells are active, while others are dormant. These dormant brain cells will gradually decline if they are not used for a long time. In order to prevent this decline, dormant brain cells can only exercise themselves and exercise their functions by dreaming during sleep, so as to achieve the goal of self-improvement and non-decline. Some people think that dreaming may be a working procedure of the human brain. By sorting out the information received by the brain during the day, the information that the brain can't process during the day can be well processed in the dream, and the problems that can't be solved by hard thinking during the day can be solved in the dream at night. For example, Voltaire, a famous Russian writer, often finishes the conception of a poem in his sleep. German chemist Kekule discovered the cyclic structure of benzene in his dream.
According to the EEG test, it is also found that the activity of human brain is quite intense when dreaming. We can detect fast and disordered brain waves from dreaming, and its intensity sometimes exceeds that when awake. From this perspective, dreaming is a self-need to exercise the function of the human brain. There is an old saying in China: "Blind people have no dreams, fools have few dreams." Although this statement is somewhat arbitrary, it also shows from one side that people with little knowledge and stupidity rarely dream. On the contrary, dreamers are mostly people with rich thinking and imagination. Of course, if you don't sleep, you will have nightmares, which should be another matter.
Dreaming, like doing other things, should have a limit. Excessive dreaming will be counterproductive and damage people's physical and mental health. Frightened and horrible dreams often wake people up from sleep, and it is difficult to fall asleep after waking up; Strong and deep dreams will leave deep traces in brain cells, making the brain tired and unable to rest. It is generally believed that the best way to dream is to recall a dream last night the next day, not a specific dream.
Patients with neurasthenia often have difficulty falling asleep, and when they finally fall asleep, they are often awakened by nightmares, which interferes with normal sleep, makes them groggy and listless during the day, and even produces hypochondriacs and anxiety from dreams, which aggravates the development of the disease.
Dreaming of injury or pain in any part of the body is worth following up, because doctors may diagnose themselves in this way before finding any symptoms. However, dreams may also use various parts of the body as symbols of different areas of life.
Humans have long known that dreams can predict the existence of diseases before we realize that there are any physical diseases, and of course, before doctors can see any physical diseases. You don't have to worry, thinking that every nightmare symbolizes some evil disease, but if you dream that there is something wrong with your body (especially when this dream appears repeatedly), you'd better seek the advice of a doctor.