We sneeze as a natural protective reflex to clear irritants from our nasal passages. When something like dust, pollen, strong smells, or infection irritates the inside of the nose, nerve cells detect these irritants and send signals to the brain. The brain then triggers a coordinated response involving muscles in the face, throat, chest, and diaphragm to forcefully expel air through the nose and mouth. This sneeze helps remove the irritants and protect the respiratory system from potential harm or infection by clearing mucus, foreign particles, and pathogens.
Sneezing can be triggered by allergens, infections, environmental irritants, or even sudden exposure to bright light. It serves as the body's way to "reset" the nasal environment and defend against respiratory illnesses. The entire process can involve forces reaching up to 100 miles per hour, effectively removing harmful substances from the nose.
In summary, sneezing is a vital protective mechanism for maintaining respiratory health by quickly clearing irritants and potential pathogens from the nasal passages.
