Why do you close your eyes when you sneeze?
A pediatric nurse explains the science of sneezing
https://theconversation.com/a-pediatric-nurse-explains-the-science-of-sneezing-160970
According to Associate Professor Sorg, sneezing occurs not only in humans but also in many animals such as elephants, pandas , and seals, and is a physiological phenomenon that occurs when the air in the lungs is forcibly exhaled from the nose and mouth. An elephant child who is surprised by his sneezing looks like this.
Baby elephant sneezes and scares himself. --YouTube
Most often, sneezing occurs when pathogenic substances such as viruses and bacteria, or irritants such as allergens and chemicals, enter the nostrils. Sneezing is a defense mechanism that blows off foreign substances such as viruses and chemical substances together with the runny nose and prevents them from entering the respiratory tract.
The following article provides a visual explanation of the droplets that are emitted from the mouth and nose when sneezing.
Sneezing droplets turned out to reach up to 8 meters, and some experts argued that 'the recommended social distance should be increased from 2 meters' --GIGAZINE
On the other hand, sneezing can also be caused by 'unusual stimuli', one of which is pepper and chili peppers. According to Zorg, chemicals such as piperine in pepper and capsaicin in chili peppers can cause sneezing when they stimulate nerve endings in the nasal mucosa.
There is also 'psychogenic sneezing' caused by mental factors, and although the whole picture has not been elucidated, 'when strong emotions stimulate the brain, a biochemical signal is sent to the nose and sneezing occurs.' The theory seems to be the mainstream. In addition to this, the phenomenon of 'light sneezing reflex ', which causes sneezing due to light, is said to appear in about 25% of Japanese people.
Regarding the question, 'Why do you close your eyes when you sneeze?', Mr. Zorg said, 'There is a myth that if you sneeze with your eyes open, your eyes will pop out.' It is possible to sneeze as it is. ' It is the reflex of the autonomic nerve that closes the eyes when sneezing, and it seems that you can open your eyes intentionally against this reflex, but 'When you sneeze, your eyes close. Since there is a theory that 'to reduce the possibility of germs getting into the eyes', 'If you do not want to see germs spit out from your mouth, you may want to close your eyes.'
When asked, 'Why does sneezing make a sound?', 'The air emitted from the mouth and nose produces the sound,' Zorg said. Generally, the more air you breathe, the louder the sneezing sound becomes, so you can adjust the sneezing sound by consciously controlling it, and even people who endure or swallow sneezing actually However, according to experts, it is 'not recommended' because of the risk of injury.
In 2018, a case of a man whose throat ruptured as a result of enduring sneezing has been reported.
A man who put up with sneezing and ruptured his throat is reported --GIGAZINE
by quinn norton
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