Eli5: Why sneezes so strong?
In: Biology
A sneeze is a reaction in the body that suddenly presses air out of lungs so it flows quickly out through the mouth and nose. Air and mucus (the liquid found in the nose) are forced out quickly.
A sneeze consists of a deep inward breath that fills the lungs, a closing or partial closing of the throat, and a sudden increase in pressure in the lungs that forces air out. This increase in pressure is a result of muscles near the lungs that contract (tighten and shorten). Sneezing never happens during sleep because reflex signals do not pass to the part of the brain that causes muscles to move. When people sneeze, their eyes close. The speed of the air from sneezing is about 150 kilometers per hour or more.
When a person sneezes, many small drops of saliva and mucus blow out from the nose and mouth. These tiny drops often contain viruses and bacteria. Some of these are germs, which can make other people sick. To keep this from happening as much, is important to block the sneezed air with something like cloth or tissue to catch the drops. It also helps to move away from other people, go outside, or face away.
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