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What is the reason for dreaming often?

Dreaming is a normal physiological phenomenon during sleep. Everyone has dreams, but there are many, few; Some wake up with fresh memories, others are vague or hard to detect. Those who claim that they never dreamed just forget. Therefore, there is no need to make a fuss about dreaming. Of course, if you dream more, it will affect your normal sleep. After waking up, my mind will be groggy, my spirit will be in a trance, my whole body will be exhausted, and my dreams will haunt me for a long time. This is pathological and harmful to the body. A newborn baby may not dream for the first few days because he lacks external impression and has no objective dream source, or because his cerebral cortex cells have not developed to the extent of retaining external impression. It can be seen that after six weeks, the baby can already laugh, sound and suck during sleep, which may be a manifestation of dreaming. There are different opinions about how dreams are formed. Pavlov's higher nervous activity theory holds that dreaming is the product of heterogeneous stages of sleep. In parasomnia's state, due to the increase of cerebral cortex blood flow and oxygen consumption, brain nerve cells are still in very active metabolic activities, and the inhibition state is not deep, and they are still in the so-called "working" (excited) state. Under the condition of receiving all kinds of internal and external stimuli, the corresponding memory traces will be revived, and then various dreams will be produced. If you smell perfume or flowers when you sleep, you may dream that you are in a garden full of flowers and fragrant; When cold ice is placed on your forehead, you will dream of a cold winter; When you hear the sound of running water, you will dream of rain; When the face is covered with towels and other things, there will be dreams of choking and stopping breathing. Some people often dream that dogs bite their legs and wake up with a dull pain. After diagnosis, their legs were sick. This is all because the nerve impulses from internal and external stimuli spread to the corresponding nerve centers in the cerebral cortex, thus causing the excitement of nerve cells. If it is a whole day's missing, such as receiving letters from distant relatives, or preparing for exams, I will dream of meeting relatives at night, or nervous about exams. This is because the nerve cells in the corresponding parts of the cerebral cortex are too excited to be fully inhibited during sleep and remain in an excited state. Generally speaking, it is easy to dream when there are many anxieties, fears and desires during the day, when people are tired, fasting and have a high fever, when they are stimulated by sound and physical, and when the air pressure and temperature change obviously. The survey results show that the most dreams belong to vision, followed by hearing, movement, touch and taste. Of course, some dreams overlap, such as dreams in which vision and hearing coexist. There are also colorful dreams in visual dreams, such as red flowers and blue sky, which account for about one tenth of visual dreams. The content of dreams varies with age and is also related to the richness of knowledge and experience. Different wishes make different dreams: little girls dream of dolls, inventors dream of the completion of inventions; Mother dreamed of seeing a distant daughter and so on. The same stimulus can cause different dreams. Dreams are related to past experiences. Dreams of new experiences in two or three days account for about 75%; Dreams from distant childhood account for about15%; Dreams unrelated to past experiences only account for about 10%. There are many kinds of dreams. There are six kinds of dreams in China's ancient book "Li Zhouguan's Pure War Dream": "One is a positive dream, the other is a nightmare, the third is a dream, the fourth is a dream, the fifth is a love dream, and the sixth is a fear of dreams." In fact, the content of dreams is not limited to these six categories. Everyone will have all kinds of dreams: dreams of continuing to create during the day, dreams of memories, dreams of fantasy, sweet dreams, dreams of troubles, and so on. Sometimes dreams are too beautiful and happy to be expressed in words, and I can't wait to draw them. Sometimes dreams are tortuous and interesting, just like drama; Sometimes the dream is gloomy and terrible, and I wake up in a cold sweat. In some dreams, we are like bystanders, just like watching a TV series; in other dreams, we are there, participating in the progress of events, crying and laughing, frightened and resentful. He will also be a loving person. "Zhuangzi" said: "Fang dreams, but he doesn't know dreams. He dreams in a dream, and then he knows his dream. " Dreams are often illogical. In dreams, the most absurd and contradictory behaviors and events are intertwined in an extremely incredible form. All these are enough to show that dreaming is a low-level brain activity and a manifestation of low-level thinking. When people dream, the corresponding cerebral cortex activity is in a low level of rough activity, and the integration of cerebral cortex response is incomplete. The analysis of things is often wrong, bizarre and illusory, and past events are presented in a chaotic form. Therefore, the content and reason of dreaming are not mysterious, but can be analyzed and explained. When people are dreaming, although their eyes are closed, their eyes are still turning rapidly. By measuring the eye movements during this "rapid eye movement" period, we can accurately find out the time of dreaming. In this way, it is found that human beings dream for about 90 minutes. Some physiologists believe that a certain number of dreams are necessary, because it can relax people's higher nervous activity and play a role in buffering, regulating and calming the mind. They have proved through experiments that shortening the time of dreaming will make people feel impatient and anxious. Some physiological psychologists have come to the conclusion that normal dreaming is beneficial to the recovery of human intelligence, because a certain degree of nerve excitement is helpful to the dietotherapy method of nerve connection 1. Usage Clean lean pork, cut it into small pieces, put it into casserole with lotus seeds, longan meat and lily, add appropriate amount of water, cook it with slow fire, and add a little seasoning. Every night 1 time. Efficacy of invigorating qi and blood, nourishing the heart and calming the nerves. Indications: neurasthenia, weakness of qi and blood, insomnia, dreaminess, fatigue, loss of appetite, etc. 2. Peaches and quail eggs are made of walnut kernel 15g, medlar 10g, quail eggs 12 and tomato sauce. Usage: Walnut kernel is soaked in salted boiled water, Lycium barbarum is soaked in clear water, steamed in a cage for 5 minutes, quail eggs are cooked with slow fire, shelled and sprinkled with dry powder. Then fry quail eggs and walnuts in an oil pan until golden brown, and add Lycium barbarum and tomato sauce to serve. Take several doses every other day 1 time. The effects of warming yang, benefiting qi, improving intelligence and strengthening brain. Indications: neurasthenia, deficiency of kidney yang, dizziness, amnesia, insomnia and mental fatigue. 3. Some foods that help to improve dreams, don't underestimate the ordinary foods around us, but they can bring you high-quality sleep ... Xiaomi is slightly cold and has the effect of "strengthening the stomach, harmonizing the spleen and sleeping peacefully". It is found that millet is rich in tryptophan, which is the highest in all grains. In addition, millet is rich in starch, which makes people feel full after eating, which can promote insulin secretion and increase the amount of tryptophan entering the brain. Millet cooked into porridge and eaten before going to bed can make people sleep well. Longan is sweet and warm, and has the effects of nourishing the heart and brain, nourishing blood and calming the nerves. Drinking longan tea or taking longan white sugar soup before going to bed is conducive to improving sleep. Fruits and fruits contain fructose, malic acid and rich fragrance, which can induce a series of reactions and produce serotonin, thus helping to fall asleep. Lotus seeds, lotus seeds taste astringent and flat, and lotus plumule tastes bitter and cold, all of which have the effects of keeping healthy and calming the nerves. The Dictionary of Traditional Chinese Medicine claims that it can cure "sleepless nights and many dreams". Studies have shown that lotus seeds contain liensinine, rutin and other ingredients, which have a sedative effect, can promote the secretion of insulin by the pancreas and make people fall asleep. Before going to bed, you can fry lotus seeds with water and take them with a little salt. Or boiled lotus seeds with sugar. Mulberry is sweet in taste and cold in nature, which can nourish blood and nourish yin and tonify liver and kidney. It is often used to treat dizziness and insomnia caused by yin deficiency and yang hyperactivity. Take mulberries and decoct them in water to get juice. Boil it with ceramic pot into a paste, add a little honey, mix well and store it, each time 1 ~ 2 spoonfuls, and take it with warm water. Sunflower seeds contain a variety of amino acids and vitamins, which can regulate the metabolism of brain cells and improve their inhibitory ability. Eating sunflower seeds before going to bed can promote the secretion of digestive juice, which is beneficial to digestion, sedation and sleep. Walnut is sweet and warm, and it is a good nourishing food, which can treat neurasthenia, forgetfulness, insomnia and dreaminess. Take japonica rice, walnut kernel and black sesame, simmer into porridge and eat it with sugar before going to bed. Jujube is warm, sweet, red and moist. It has the effects of nourishing the five internal organs, benefiting the spleen and stomach, nourishing blood and calming the nerves, and has obvious curative effects on dreaminess, insomnia and mental trance caused by qi and blood weakness. Take red dates, remove the core, add water to boil, add rock sugar and donkey-hide gelatin, and simmer to a paste. Take 1 ~ 2 spoonfuls before going to bed. Honey has the effects of invigorating the middle energizer, invigorating qi, calming the five internal organs, harmonizing various medicines and relieving various poisons. Has obvious curative effect on insomnia patients. Take 50 grams of honey every night before going to bed, 1 cup, and take it with warm water. Milk is an ideal tonic. Drinking 1 cup before going to bed can make people fall asleep, especially the elderly.