Sneezing is a natural defense mechanism of the human body and is a violent act of the respiratory tract to reject dissidents. When people's nasal mucosa is stimulated, this stimulation is transmitted to the brain through the peripheral nerves, causing it to respond automatically. In turn, people will take a deep breath, then the chest will contract violently, and the gas in the lungs will spurt out of the trachea through the mouth and nose at a rapid and powerful time, driving the irritant away.
Sneezing can spread germs, studies have found that a sneeze can spray 40,000 tiny droplets of mucus, containing about 100,000 to 300,000 bacteria, people with colds can spray bacteria and viruses into the surrounding space within 2 seconds after sneezing, and can transmit cold viruses to 150 people in 5 minutes. And the sound of sneezing can also make people look out of shape on many occasions.
However, what everyone must know is that this sneeze should be hit or not, and do not hold back, otherwise it will really hold out internal injuries!
1 Causes perforation of the tympanic membrane
When the sneezing has been initiated, the inhalation action has been completed and then forcibly stopped, the pressure that has been generated cannot be released normally, and it may rush along the Eustachian tube to the middle ear tympanic chamber. Theoretically, if the pressure generated is large enough, it can lead to perforation of the eardrum.
2 Infection of the respiratory tract
Because the sneezing is not released, it is impossible to clean up foreign bodies and pathogens that stimulate the nasal cavity, so it may continue to move along the respiratory tract, causing further infection or damage to the body. Pathological sneezing caused by inflammatory diseases such as colds and allergies cannot be done by subjective inhibition, and actively seeking treatment can fundamentally solve the problem of frequent sneezing.
3 Causes lung injuries
Sneezing can also cause damage to distant organs other than the facial features. Because the excessive pressure can be transmitted to the lower respiratory tract and lungs, the alveoli wall ruptures and fuses with each other to form large alveoli. In severe cases, sneezing can trigger pneumothorax, and the patient may feel pain in a certain part of the chest and have difficulty breathing.
4 Cause cardiovascular and cerebrovascular diseases
Sneezing can also lead to an increase in blood pressure, adverse effects on cardiovascular and cerebrovascular diseases, if the patient itself has lesions such as cerebrovascular malformations, there is also a risk of stroke.
Since sneezing is so harmful to the human body, how can we "gracefully" sneeze out without affecting others?
In fact, it is very simple in more formal occasions, in order to behave decently, everyone can use handkerchiefs, paper towels and other light cover of the mouth to prevent saliva particles and germs from flying around. If the nose is easily irritated and wants to sneeze, it is too late to prepare a handkerchief, at this time it is recommended to sneeze in the elbow socket, rather than covering the mouth with the hand, to avoid the contact between the hand and the mouth to spread the bacterial virus. In addition, we should remind everyone to deal with handkerchiefs and paper towels after sneezing in time to avoid the further spread of bacteria and viruses, and finally remember to wash your hands!