Very scientific explanation ~ ~
If time is limited, take a nap on your stomach and wake up in 10 minutes, and your spirit will be fine.
Don't miss the woodcutter when sharpening the knife ~ pay attention to sleep at ordinary times ~
Additional: refreshing food
1. Beans: Iron is the main medium for producing human energy and is responsible for delivering oxygen to human organs and muscles. If the human body lacks iron, it will lead to anemia and make people feel dizzy and weak. Although pig liver and lean meat are the best sources of iron, eating some red beans, black beans or soybeans often can also supplement iron, effectively improving the state of fatigue and weakness.
2. Spinach: Spinach contains magnesium, which is a mineral that women are more likely to lack. If the daily intake of magnesium is less than 280 mg, women will feel tired. The function of magnesium is to convert carbohydrates in muscle into usable energy.
3. Banana: Banana is called "high-energy food", which contains carbohydrates easily absorbed by human body and is also rich in potassium. Potassium can help maintain the normal function of muscles and nerves, but it cannot be stored in the body for a long time. After strenuous exercise, the potassium in the body will drop very low. Studies have shown that too low potassium can lead to muscle pain, arrhythmia and slow response. And eating a few bananas can supplement the deficiency of potassium. Contains serotonin, which will make you feel full.
4. Strawberries: Strawberries are rich in vitamin C. Vitamin C helps the human body absorb iron and nourish cells, so eating more strawberries can make people energetic. Quickly relieve people's bad emotions.
5, skim yogurt: Many women will feel tired and sleepy before and after menstruation. Studies have shown that eating more foods rich in calcium, such as skim yogurt, can obviously improve this situation. If you eat three small cups of skim yogurt or two large cups of milk every day, you can relieve abdominal pain, fatigue, irritability and other symptoms, because calcium can relieve muscle tension and regulate endocrine.
6, lemon, because the vitamin C content is extremely high, greatly improving the ability to receive information. Very suitable for students to eat.
7. Spinach Spinach contains a mineral that women are more likely to lack-magnesium. If women's daily intake of magnesium is less than 280 mg, people will feel tired. The function of magnesium in human body is to convert carbohydrates in muscle into usable energy.
8. Bananas Bananas are called "high-energy foods", which contain carbohydrates easily absorbed by the human body and are also rich in potassium. Potassium can help maintain the normal function of muscles and nerves in human body, but it cannot be stored in the body for a long time. After strenuous exercise, the potassium in the body will drop very low. Studies have shown that too low potassium can lead to muscle pain, arrhythmia and slow response. And eating a few bananas can supplement the deficiency of potassium.
Strawberry Strawberry is rich in vitamin C, which helps the human body absorb iron and nourish cells, so eating more strawberries can make people energetic.
9. Tuna Among the fish in protein, tuna is rich in tyramine, which can help the human brain to produce neurotransmitters, making people concentrate and think quickly.
10, cereal Some people find that if the fiber content in breakfast is high, you won't feel hungry. Nutritionists explain that fiber can slow down digestion, continuously supply carbohydrates to blood vessels, and make the human body get energy continuously. Oatmeal is a kind of food rich in fiber, and its energy release is slow and balanced, which can keep the blood sugar level of human body at a high level all the time, so it won't feel hungry and energetic soon.
1 1, Chinese cabbage, can reduce thyroid activity. Before the exam or major problems, as long as you eat cabbage salad, you will immediately become calm.
12, carrots, can help memory. Carrots can promote the metabolism of the brain.
13, pineapple, anyone who needs to recite many lines and music scores needs a lot of vitamin C, and pineapple is rich in this vitamin. Pineapples contain very low calories.
14, avocado, an energy source for enhancing short-term memory, because it is rich in nucleic acid.
Shrimp, a delicious food that nourishes the brain, provides fatty acids that help to concentrate.
15, onion, can eliminate brain and psychological fatigue, improve oxygen supply to the brain.
16, walnuts or hazelnuts-walnuts can strengthen the nervous system and stimulate brain activity.
17, fig, containing substances similar to aspirin, can dilute blood and improve oxygen supply to the brain. For journalists and other creative people, this is a beneficial result.
18, red pepper, which contains aromatherapy agent to promote the secretion of sex hormones.
19, celery, can increase brain activity. It contains aromatherapy which can stimulate the nervous system.
Bitter food contains amino acids, vitamins, alkaloids, glycosides and trace elements. It has antibacterial, anti-inflammatory, heat-clearing and summer-relieving, refreshing and fatigue-relieving functions. First, bitter food can prevent cancer. Second, bitter food can promote gastric acid secretion and increase gastric acid concentration, thus increasing appetite. Third, bitter food is refreshing.
Recommend several common bitter foods and choose them according to your actual situation.
1. Momordica charantia: It is rich in protein, fat, sugar, calcium, sodium, iron, carotene, thiamine, riboflavin, momordicin and so on. Immature young melons can be eaten as vegetables. When they are ripe, they can be eaten raw, made into soup, cold salad, fried, or cooked with meat and fish. Has the effects of stimulating appetite, promoting digestion, clearing away heat, relieving summer-heat, relieving fatigue, clearing away heart fire, improving eyesight, invigorating qi and strengthening yang. Scientists also accidentally discovered that bitter gourd has beauty effects. Bitter gourd is rich in vitamin C, and also contains many amino acids, momordicoside, galacturonic acid, pectin, minerals and vitamins. Therefore, eating bitter gourd can effectively enhance the vitality of cortex and make skin tender and fit.
2. Dandelion: Dandelion whole grass with roots can be used as a vegetable to satisfy hunger (with tender leaves, cold salad and stir-fry), and can also be used as medicine to treat diseases. Eating more does not harm the body, and also has the effects of clearing away heat and toxic materials, relieving diarrhea, promoting gallbladder function, protecting liver, invigorating stomach, lowering blood pressure, refreshing mind, resisting bacteria and cancer.
3. Bitter vegetables: Bitter vegetables contain more than a dozen nutrients, such as protein, fat, carotene, vitamins, mannitol, alkaloids and so on. They are bitter and cold, and have the effects of calming the nerves, invigorating qi, clearing away heat and detoxifying.
4. Almond: It contains amygdalin, which can relieve cough and asthma, moisten the intestines and relax the bowels. It is suitable for cough and phlegm caused by cold, with good effect.
5. Tea: Tea tastes bitter and slightly cold, which can relieve many toxins. Studies have proved that tea is rich in bioactive substances-tea polyphenols. Tea polyphenols can precipitate or reduce heavy metal ions, inhibit bacteria and viruses by combining with protein, and also have corresponding inhibitory effects on a variety of carcinogens. In addition, tea polyphenols can also improve the body's antioxidant capacity, reduce blood lipids, enhance the elasticity of red blood cells, prevent thrombosis, alleviate or delay atherosclerosis and hypertension, and have the function of protecting cardiovascular and cerebrovascular diseases.
6. Beer: Beer is made from barley and hops by yeast fermentation. It is rich in amino acids, protein, sugar, minerals and other ingredients beneficial to human health, and is known as "liquid bread". Its refreshing and delicious bitter taste has the effects of helping digestion and nourishing the body. Drinking beer in moderation can strengthen the stomach, improve eyesight, dissipate heat, quench thirst, lower blood pressure, relieve cough, induce diuresis, calm down, eliminate fatigue and restore energy.
In addition, common bitter foods include chrysanthemum, lily, gentian, lotus leaf and so on. These bitter foods also contain alkaloids, bitter peptides, nitro compounds, calcium, phosphorus, potassium, iron, magnesium, zinc and other mineral elements, which have the effects of clearing away heat and relieving summer-heat, inducing diuresis to reduce swelling, strengthening the spleen and benefiting the stomach. You may also eat bitter food such as coffee, chocolate and cocoa in summer. However, it should be noted that bitter food should not be eaten in excess at one time, which may easily cause discomfort such as nausea, vomiting and stomach failure.
Why do people dream, what is the meaning of dreams, and what effect do dreams have on people? For thousands of years, dreamers, psychologists and neurobiologists have been looking for this, but so far they have failed to find the answer to this mystery.
More rigorous scientific research on dreaming began in17th century. 1886 Robert, an expert on dreams, believes that people are exposed to countless information intentionally or unintentionally in their daily activities, and they must release some of these information through dreams. This is the famous theory that "dreaming is to forget", which began to be popular again in the1980s one hundred years later. Shortly after Robert, Freud's theory of psychological dream interpretation appeared again. Freud believed that people constantly have desires and desires, which are expressed and released through various disguises and deformations in dreams, so that they will not break into people's consciousness and wake people up. That is to say, dreams can help people eliminate those desires and desires that are unacceptable to the conscious system and are the guardians of sleep protection. Freud's theory was popular from the beginning of this century to the 1960s. Later, the study of dreams in the world slowly left the field of psychology and entered the biological laboratory. Since then, dreaming has been regarded as a biological phenomenon. Michel Jouvet, a neurobiologist at the Dream Research Laboratory in Lyon, France, is an internationally renowned expert in dream research. Jouvet defined dreaming as "parasomnia" in 1959. He found through EEG test that people have 5 ~ 20 minutes of dreamy sleep every 90 minutes, and the signals reflected on the instrument screen are different, showing the changes of brain activity during sleep. If the subject is awakened when the EEG shows dreamless sleep, he will say that there is no dream; If you wake him up when he shows dreamy sleep, he will remember the dream he just had. In addition, the researchers used X-ray tomography technology to test and found that the image of the brain in dreamy sleep stage is close to that in waking state. Interestingly, the researchers found that dreaming is not unique to human beings, and birds and all mammals also dream. In the late 1970s, a scientist discovered through experiments on mice that dreamy sleep was also related to memory. Dreamy mice can remember their experiences better than those deprived of dream sleep, but the results of this study are not applicable to humans, because doctors use an inhibitor called monoamine oxidase when treating patients with mental depression, which can completely cancel people's dream sleep, but will not cause memory impairment. Wei Ru, a French expert on dreams, believes that dreams are determined by genetic factors. He compared the letters and numbers emitted by mice during their dream sleep and found that mice with the same genetic system had similar letters and numbers. A recent experiment by Bulga, a researcher at the University of Colorado in the United States, confirmed this theory. Bulga studied identical twins and found that twins who were raised by two different families in different places after birth actually had similar dream experiences, which proved that human dream performance is genetic memory.
In addition, there is a recent report on dreaming research in the just published American Science Weekly. The author of this report, a cooperative team of the Washington Institute of Neuroscience and the National Institute of Health in Bocaistar, Maryland, tested more than a dozen people who accepted the experiment with a high-performance neural tomography camera and found that the blood circulation in this specific area of their cerebral cortex was abnormally accelerated during the dream sleep stage. The researchers found that the visual nervous system responsible for seeing dream scenes and external visual scenes in the brain originally existed independently. According to the report, after seeing that the internal visual system of dreams has been proved to exist independently, it can explain why we have inflated emotions in dreams and why we can accept unreasonable eccentric plots and chaotic concepts of time and space.
Dreaming is a normal and indispensable physiological and psychological phenomenon of human body. After people fall asleep, a small number of brain cells are still active, which is the basis of dreaming. Why do people dream and what happens if they don't dream?
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.