723K views · 3.6K reactions | Fake Sneezing on Strangers Prank! | Best Videos | Facebook

Ever ponder the origins of that sudden, uncontrollable sneeze? Sneezing is the body's way of saying ‘Get out!' to potentially harmful invaders like dust, pollen, or viruses. During a sneeze, several muscles in your chest, abdomen, and face contract. The sudden release of air at high speeds (up to 100 miles per hour!) propels the irritants out of your nose and mouth. Sneezes can even travel up to five feet, hence the importance of covering your nose and mouth to prevent the spread of germs. Next