The Science Behind Sneezing and Coughing

Sneezing is your body’s reflex to expel irritants fast.
Dust, pollen, or microbes trigger sensory nerves in the nose.
Air blasts out at nearly 100 miles per hour.
Coughing clears deeper airways when mucus builds up.
Both are mechanical ways to eject unwanted particles.
Sneezing also spreads immune warning chemicals in the airways.
Holding in a sneeze can actually injure delicate tissues.
Your brain coordinates the muscular choreography behind each reflex.
These reactions keep lungs and sinuses relatively germ-free.
Every sneeze is a perfectly timed defensive maneuver.