Sneeze

body · reflex · health

Powerful air blast. When you sneeze, your body forces air out so hard and fast through your nose and mouth that it's like a tiny explosion. This helps clear out annoying particles, dust, and mucus that shouldn't be there.

Triggered by surprises. Sneezes can happen when something tickles your nose, like dust or pollen. They can also start from bright light, cold air, a full stomach, or even allergies and infections.

Spreads germs quickly. When someone sneezes, tiny droplets shoot out of their mouth and nose into the air. That's why it's smart to cover your mouth with your elbow or a tissue when you sneeze to keep those droplets from spreading to other people.

Your body's defense. Sneezing is your body's automatic way of protecting itself. It clears out things that don't belong in your nose and lungs before they can cause problems.

The right sneeze etiquette. When you sneeze, it helps to look down so the droplets fall toward the ground instead of spreading at the level where people breathe. Covering your mouth with your forearm or elbow is even better.