One phone call means someone scolds you, two phones mean someone misses you, three phones mean someone loves you, and four phones mean you have a cold. Why is it easy to sneeze when you see the sun? Some people itch their noses when they see sunlight or light, and sneeze easily. Others want to sneeze, but they can't. When they see the light, they will type it out immediately. It doesn't matter if you sneeze with your eyes alone. What is their relationship on this issue? First, let's briefly explain the internal structure of sneezing. Sneezing refers to an unconscious "reflection" of foreign objects (such as dust, bacteria, pollen, etc.). ) enter the car. ) into the nasal cavity was driven away. After the foreign body enters, the trigeminal nerve located on the nasal mucosa sends instructions to the respiratory muscles acting on the lungs, violently expelling air and expelling the foreign body from the country. So, why do you sneeze when there is strong light? In fact, we still can't fully understand the mystery. Because it is not an important disease, people have not made every effort to study it. In some countries in Europe and America, some people began to study reflective sneezing caused by sunlight, and put forward some hypothetical statements one after another. At present, it is believed that the perception of eyes and nose is dominated by the same trigeminal nerve, so the defense response to strong stimulation is chaotic, which leads to sneezing. Specifically, it is the strong sunlight from the eyes. The nasal cavity mistakenly thinks that it is irritating to itself, so it wants to sneeze and discharge foreign bodies. According to statistics, sneezing reflex caused by sunlight mostly occurs in infants under 3 years old. In developing babies, the division of labor between nerve centers is not as detailed as that of adults, and it is easy to confuse some external stimuli. Others sneeze easily when pulling out their eyebrows. The reason is similar to the stimulation of strong light. The phenomenon of crying when plucking nose hair is just the opposite. When the nose is stimulated, the eyes will have a defensive reaction, so tears will come out to wash the foreign body. Sneezing, commonly known as "sneezing" or "sneezing", is a defensive reflex action caused by the stimulation of nasal mucosa. However, in traditional folk customs, it was once regarded as a sign of some abnormal behavior or the development trend of things, and various explanations for it made people fall into the clouds. When you sneeze, someone is thinking about you. The final style of The Book of Songs and related explanations prove this point. For example, according to Mr. Chen Zizhan, this poem is taken from folk songs and belongs to the theme of flirting between men and women. The poem says: "I can't sleep when I'm awake, and I sneeze when I miss you." Before him, Han commented: "I am so worried that I can't sleep. When a woman (you) treats me as a darling, I am so sleepy. " It seems that you feel the same way about me. I sneezed. Su Song's poem "Yuan Ri" says: "Who often chats? It can be understood according to Zheng Xuan's annotation or Chen Zizhan's literal translation. Although there is a difference between missing and being missed, there is no doubt that it belongs to family. So far, there is a common phenomenon in rural areas: the child sneezes, and his mother says, "Grandma misses you", and then he plans to go back to his mother's house to visit relatives-it is sneezing that is a sign that someone misses me. Someone was talking about me when you sneezed. Song Mai's Essays on Rong Zhai, Volume 4: "If people sneeze more, spit it out, and wish the cloud:' Some people say I am', especially women." Song Yongqing's Lazy True Son Volume III: "As the saying goes, people talk." Some people spit out curses because they talked about me, so this kind of "talking about me" should be understood as "speaking ill of me (or gossiping)" in Yuan Kang's drama jy's humble abode. Two bachelors living near Liangshanbo pretended to be Song Jiang and Lu and robbed the daughter of Wang Lin, an old wine merchant. When the truth is exposed by Liangshan and the impostor is ready to be punished, bachelors even sneeze and say, "My ears are hot, and someone must say it"-this is also a sign that someone is speaking ill of me or gossiping. Sneezing is a good sign. For example, The Record of Yanbei said, "Let the queen sneeze, and the attendants shouted' Straight' Jews and shouted' Long live'." To this day, some people still have a similar custom: when someone sneezes, he immediately cheers and wishes: "Good! Longevity! " Others do the opposite-sneezing is an ominous sign that something bad is coming. Some people call it "long life", not wishing good luck, but praying for timely peace. The meaning is similar to Hong Mai's "I want to spit out my wishes". For example, according to Dong and Yu Yizheng's Scenery of the Imperial Capital, when people sneeze in bed on New Year's Day, they must get up immediately, or they will get sick. Getting up is a remedy. Some people have long questioned this statement: if sneezing is an ominous sign, why should people who sneeze find ways to remedy it in time? Why should he wait for someone else to pray for a solution? Therefore, some people speculate that it may be that the ancients thought that smelling incense and sneezing were harmful to themselves, so they had to say something to eliminate the disaster. Other countries have similar customs. First of all, we should use the time of sneezing to see what happened and what happened. For example, Ming Lujing's "Yan Yan Lu" said that when sneezing, he would eat and drink; If you are ugly, you will worry and doubt; When you engage in diplomacy, when you are old, you will be very lucky; When you are young, you will get married or meet someone; When you are young, you will be happy; When you are young, you will be fair; And there will be guests when you are young. Is there a causal explanation? No. From the data mentioned and quoted above, it can be seen that the custom marked by sneezing has existed at least in the era of the Book of Songs, and may be traced back to a longer time. Han Shu Literature and Art Annals contains 16 volumes of tinnitus miscellaneous notes, but it was basically lost in Sui and Tang Dynasties. Therefore, various miscellaneous books compiled by Tang, Song and later generations may not be the reliable basis for exploring the origin, formation reasons and cultural connotation of this ancient custom. However, in the process of folk inheritance, there may be various variations, which are very different from the original appearance, resulting in various explanations, and many related data records can also draw different conclusions. From this point of view, it is a mystery whether the custom of sneezing was formed on the basis of what kind of knowledge or experience the ancients had, and how to generalize it and infer one or more possibilities from it.