Remember your grandma telling you to turn your head away when you sneeze? She was onto something, but she probably didn’t know the full story. In the 1300s, during the Black Death, people believed sneezing was a sign of death—hence “God bless you.” They weren’t wrong about the danger, just the source. A single sneeze can contain up to 100,000 germs, according to the American Lung Association. That’s more bacteria than are on your phone screen after a week of scrolling. And if someone sneezes near you, those germs can linger in the air for 10 to 30 minutes, just floating there like a bad omen. So if you’re in a meeting and someone sneezes, maybe wait for the air to clear. Or just become a hermit. Your choice.
The Smell Test: Yes, You Can Sometimes Smell Someone’s Sneeze
Here’s a weird one: ever walked through a room and caught a whiff of someone’s lunch after they sneezed? That’s because scent molecules from their last meal hitch a ride on those same droplets. So if you smell garlic, you’re basically tasting their sandwich from 10 feet away. Gross? Yes. Science? Also yes. And for the truly competitive, a study in the Journal of Fluid Mechanics found that a sneeze’s cloud can reach 12 feet high if the person is standing. That means a 6-foot-tall person can spray droplets at your eyeballs, even if you’re standing right in that “polite conversation” zone. So the next time someone sneezes, don’t just say “bless you.” Say, “I hope you washed your face before aiming it at my latte.”
How Far Can A Human Sneeze Travel at Ernest Rue blog
