In your daily life, you have encountered several "sneezes" in a row;Or even if you don't have a cold, do you sneeze for no reason?The matter of sneezing was given a different meaning in front of the romantic ancients - someone was thinking about me, or someone was saying bad things about me.
There is a cloud in the Book of Songs: "If you can't sleep, if you want to speak, you will sneeze." This means that you can't sleep when you wake up. I think you're thinking so much, you're going to sneeze. Wow!?Is this the earliest naïve understanding of quantum entanglement theory?
Today, let's analyze why you sneeze from a scientific point of view
Sneeze. 
Sneezing is an unconscious "reflex" that occurs when foreign objects (such as dust, bacteria, pollen, etc.) are repelled from the nasal passages. After the foreign body enters the nasal cavity, the cells in the nasal cavity of the human body are stimulated, and the trigeminal nerve located in the nasal mucosa sends instructions to the respiratory muscles acting on the lungs, and the muscles around the lungs contract rapidly, generating high-speed airflow, violently expelling air to expel the foreign body. Sneezing reflex, commonly known as"Sneeze. "or"Sneezing spray", which is a defensive reflex action caused by irritation of the nasal mucosa.
Sneezing is usually an allergic nose or an itchy sensation that penetrates deep into the outer tract and is released by an involuntary eruption.
Sneezing is a self-protective stress response of the human body.
But when the "sneezing" does not stop, we should be alert, there are the following situations that will cause sneezing, we must pay attention in life, once the symptoms of sneezing discomfort appear, we must go to the hospital for examination, and actively accept the doctor's **:
1.Cold: Colds are actually called "acute rhinitis" in medicine, and most of them are due to the decline of the body's resistance and viral infections. When you suffer from a cold, the virus will enter your respiratory system, and our respiratory system has a certain resistance, if a large amount of virus accumulates in the nasal cavity, it will help clean the nasal cavity by sneezing, reducing the further invasion of the virus, cold sneezing is actually a self-protection function.
2.Allergic rhinitis: The initial symptoms of allergic rhinitis are very similar to those of a cold, because allergens enter the respiratory tract through our nasal cavity, so when we are in regular contact with allergens, the nasal cavity will consciously resist these allergens and remove them by sneezing.
3.Kidney deficiency: The body's guard qi is like a guard to protect the human body, is the main force to resist the invasion of external evils, it is rooted in the lower coke kidney of the human body, nourished in the middle of the spleen, and proclaimed in the upper scorched lungs.
If the body's kidney qi is weak, the ** of the guard qi will be insufficient, and the health qi of the lungs will be reduced when it reaches the channel of the health qi, and the lungs will not be able to release the health qi normally, so the phenomenon of sneezing will occur. Kidney qi deficiency will cause people to sneeze frequently and persistently, accompanied by fatigue and weakness, soreness or pain in the waist and knees, dull complexion, sensitivity to cold, and warmth in the hands and feet. The kidneys should be tonified to strengthen the foundation, so that the kidney qi is vigorous, the health qi is sufficient, and the body's ability to resist external evils is enhanced.
Therefore, in the future, you should stop thinking that sneezing is a sign that someone is thinking about you, it is a reaction of the nasal mucosa irritated by a foreign body, and it is a sign of disease.
How can you tell the difference between allergic rhinitis and a cold?
Allergic rhinitis is very similar to a cold, and at least 70% of patients with allergic rhinitis are easily confused with a cold, prone to taking the wrong medication and delaying the correct diagnosis**.
1. Sneezing: I will sneeze when I have a cold, but not many times;The symptom of allergic rhinitis is continuous sneezing, and some patients even sneeze dozens more than a day.
2. Runny nose: From the perspective of the symptoms associated with colds, runny nose generally appears in the early stage of colds, and the amount is not very large;But allergic rhinitis is the opposite, accompanied by a large amount of nasal discharge with sneezing.
3. Nasal congestion: allergic rhinitis and colds will cause nasal congestion symptoms, and generally nasal congestion for more than 7 days is likely to be allergic rhinitis, not a cold.
4. Itchy nose: The main symptom of the nose when you have a cold is nasal congestion for a long timeWith allergic rhinitis, the nasal cavity will be very itchy, and you can't help but rub your nose with your hands constantly. Patients with severe nasal itching will also have itching in the eyes, ears, throat and other places, and symptoms of hyposmia will appear.
5. Systemic symptoms: A cold can be complicated by some systemic symptoms, such as fever, general weakness, muscle aches, etc. Allergic rhinitis is a reaction of the nasal mucosa to a substance, so the possibility of systemic symptoms at the time of attack is relatively small. Physiological sneezing is normal, pathological sneezing is mainly caused by colds and rhinitis.
However, if the nose is itchy and wants to sneeze, but the occasion is not suitable, don't hold it at this time, because when people sneeze, the upper respiratory tract will produce strong pressure, if the mouth and nose are completely covered, or hard to hold back, the pressure generated by the respiratory tract can not be relieved and forced to turn back, resulting in an instantaneous increase in pharyngeal pressure, which may seriously break through the eustachian tube, cause ear canal tympanic membrane perforation, tear trachea, nosebleeds and other consequences.
Therefore, if you sneeze, you have to hit it, don't hold back, don't damage your body for a momentary image. If it's in public, pay a little attention. Cover your mouth and nose with a handkerchief or tissue, and if you cover your mouth and nose with your hands, you must wash your hands in time after sneezing, and avoid shaking hands with others or touching public objects, which will cause secondary pollution.
If you can't find a handkerchief or tissue temporarily, you can use your elbow sleeve instead. Covering the mouth and nose with the sleeves of the hand can effectively block the sprayed droplets on the elbow** or clothing, and this part is not easy to contact other public objects, which can effectively block the spread of pathogenic microorganisms.
Because of the power of a sneeze, the bacteria and viruses contained in a sneeze can attach to the armrests, seats, and other places where people are constantly scratched and touched within 2 seconds, and can infect 150 people with cold viruses within 5 minutes.
Therefore, it is everyone's responsibility to prevent the spread of disease. Maintain a good posture when sneezing, and be prepared if your nose is itchy, Many people Xi bending over and bowing their heads when sneezing, which is wrong. This instantaneous action of Xi may cause lumbar muscle injury or disc herniation or even spinal fracture.
It is best to sit when sneezing, which can reduce the pressure change in the chest and abdominal cavity. If you sneeze while standing, it is best to hold on to something with both hands, and at the same time deliberately bend your knees and neck to support your waist to protect your spine and make the body resist the huge impact of sneezing. If the sneeze is too urgent and you don't have time to put one hand on your waist, you can also immediately squat down to avoid injury to your body.
Once we know what causes sneezing, we know how to avoid too many sneezes, and the occasional sneeze is not a bad thing, but sneezing one after another can make people feel very uncomfortable, and at the same time, sneezing can lead to the spread of the virus, which can easily spread the disease to others.
We can develop a good habit of eating Xi, personal Xi hygiene, and good Xi of protecting the nose, stay away from harmful gases, strengthen the intake of nutrients, and exercise regularly to improve the body's immunity, so as to avoid being disturbed by diseases. Healthy Wintering Program