Have you ever seen a whirlwind? It is like a wild horse in Sarai, hovering, howling and whistling on the earth. It is wrapped in dust, leaves, feathers and insects and rotates very fast. There are also various cyclones in the human body, which produce drums, whistles and orchestral music. ...
Yawning sound
Yawning is a common phenomenon. When yawning, people's eyes are narrowed into a crack, their mouths are wide open, and their bodies lean back, making a deep and loud sound accompanied by stretching. Everyone yawns five minutes after birth, and it will appear repeatedly at a wonderful moment every day, always with you until the end of your life.
Why do people yawn? People in some Asian countries think that this is because relatives and friends are talking about themselves; People in some parts of South America feel that this is the enemy's behind-the-scenes slander; Manolo people in West Africa believe that yawning means something unpleasant will happen; The Maori in Oceania, on the other hand, believe that yawning three times in a row will definitely bring good luck.
Provine and Berninge, physiologists at the University of Maryland, have been studying yawning for more than ten years. They found that drivers who drive at night often yawn, students who are reading books and doing their homework yawn repeatedly, and even people who watch TV at home at night yawn one after another, but few people yawn in bed. It turns out that yawning is a reaction to promote physical awakening when people feel that they must stay awake. People who have gone to bed seldom yawn, because they no longer need to stay awake and can sleep peacefully.
Another function of yawning is to calm people down. Before the pilot carries out the task, the athletes play the game, the violinist plays, and the students yawn repeatedly before the nervous exam, because this can relax them from the nervous psychological state.
Interestingly, yawning can also be contagious. As long as one person yawns, others around him will yawn. Yawning scenes in movies and TV will also prompt viewers to yawn one after another.
Sneezing bursts
Almost everyone has sneezed. In ancient China, sneezing was called "wrong throat", and it was not called sneezing until after the Tang Dynasty. According to legend, once when Li Xi 'an, the king of Ning, was having dinner with his younger brother, Tang Xuanzong, he suddenly made a "wrong throat" and Ning Wang hurriedly confessed. At this time, Huang Zanzhuo, a musician waiting by, was afraid of Xuanzong's anger, so he skillfully rounded up: "Just now, Ning Wang didn't say anything wrong, but' sprayed the emperor' and praised the emperor!" In a word, Xuanzong was amused. It is said that "sneezing" evolved from the word "spray emperor".
When sneezing, people take a deep breath first, and then a strong airflow rushes out of the nasal cavity to discharge the nose; If you open your mouth, spit will come out of it. In this process, people will make a "owe" sound.
People sneeze when they are cooking a stove, and they sneeze when they cut peppers and shallots. People often sneeze after the nasal cavity is stimulated by dust, pollen and spicy smell in the air. People who have a cold often sneeze.
When it comes to the frequency of sneezing, the worst is a young man named Cronin in London. Every day from 5 am to 5 pm, he sneezes continuously, once every 2 seconds on average, and sneezes 18000 times a day, making him the world sneezing champion. Strangely, after 5 pm every day, his sneezing will come to an abrupt end. The doctors explored the reason again and again, but they still found nothing. No one can tell Cronin to stop sneezing, but he will stop sneezing as soon as he enters the dark room. On this basis, some people think that Cronin may be allergic to sunlight.
According to scientists' analysis, an ordinary sneeze can eject 1 10,000 to 20,000 droplets, and there are 4,500 to10.50 million bacteria, and the ejected droplets can fly 3.5 meters away. If people who sneeze have germs, people around them are easily infected. So, don't sneeze at others. You should gently cover your nose and mouth with a handkerchief or napkin, or avoid others.
Snoring rumbles.
Snoring, commonly known as snoring. Nearly half of the adults in the world snore when they sleep. Among them, men are 12 times that of women, the elderly are six or seven times that of young people, and the obese are four or five times that of ordinary people.
Many people don't want to be in the same room with people who snore loudly, because the rumbling snoring will make people sleepless all night. A dock worker in Britain snores as loudly as a rock band. His wife's left ear was deafened by his snoring. According to statistics, about 654.38 million+couples divorce each year because their husbands sleep and snore. Of course, snoring is not a man's patent. An 87-year-old widow in Britain snores like thunder when she sleeps, which keeps a couple upstairs awake. The couple filed a complaint, and finally the court ordered her to take measures to reduce noise.
Medical scientists believe that breathing through the mouth while sleeping is the cause of snoring. Improper sleeping posture, high pillow, poor nasal ventilation, rhinitis, tracheitis, turbinate hypertrophy, chronic pharyngitis, etc. It also makes people snore. Children's snoring is often caused by tonsil hypertrophy.
Acid gas in the stomach
Many people will "burp". Eating too fast, or smiling with your mouth open and inhaling cold air can all cause hiccups. Men are more likely to burp than women, and the elderly and children are more likely to burp than young and middle-aged people.
British scientists have found that fetuses also burp in their mothers' stomachs, and the frequency of burping is 3000 times higher than that of adults. According to analysis, this is because burping is of great benefit to fetal development and can exercise respiratory muscles.
How did the hiccups come from? You know, when people eat, drink and talk, they will inhale some air in their mouths. Usually, the pressure in the stomach is higher than that in the esophagus, but the gas in the stomach will not come out of the mouth because of the obstruction of the esophageal sphincter. Once the gas in the stomach increases greatly, some gas will escape from the mouth through the esophagus, which is called burping.
Generally speaking, drinking some hot tea or boiled water can eliminate hiccups; Trying to sneeze can also stop burping. However, don't "treat" hiccups with sudden fright, because it will scare people out of illness and even scare people to death.
Embarrassed intestinal gas
Farting is a normal physiological phenomenon. This is the result that the gas in human gastrointestinal tract is excreted through anus. According to statistics, under normal circumstances, a normal adult will produce 400 ~ 650 ml of fart every day. In a day, everyone farts differently: twenty or thirty times more, only once less, with an average of 13 times.
Some diseases will increase the number of farts. According to China's ancient books, Li Shimin suffered from a disease called "gas dysentery". The so-called "gas dysentery" means that the gas discharged from the intestine is like diarrhea, which is uncontrollable fart. Earlier, it was reported that a girl in China kept farting for a long time, which was quite annoying. After examination by a doctor, it turned out that the intestines were different from normal people and returned to normal after the operation.
Picasso, the actor of Pamela Rosa Theatre in France, is the best fart in the world. His fart can even put out a candle fire 30 cm away from him.
According to the analysis, the fart contains hydrogen, the highest content can reach 47%, which has reached the level of prohibiting fireworks. It is reported that during an operation, fart met the electric spark of an electric scalpel, which caused an explosion and blew up a section of the patient's intestines.
Besides hydrogen, fart also contains nitrogen, oxygen, methane, carbon dioxide, and a small amount of odorous ammonia and hydrogen sulfide. Where do these gases come from? Most of them are swallowed when we eat and drink water, and some of them are produced in the process of food digestion.
Farting is good for patients who have had abdominal surgery. Because this shows that the digestive tract is "unobstructed" and the situation is normal. But it is not good to fart repeatedly in public. A better way is to pay attention to breathing through your nose at ordinary times, reduce the air swallowed into your stomach, and eat less food that is easy to produce gas, such as broad beans, soybeans, sweet potatoes, radishes, onions and so on.