Why Do Some People Sneeze When They See Bright Light?

Some people sneeze when they see bright light, like the sun or a flash from a camera. It's called the photic sneeze reflex. Imagine your nose is connected to your eyes by a secret tunnel, and when that tunnel gets a signal from light, it tells your nose to sneeze!

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Examples

  1. A child sneezes when the classroom lights come on.
  2. Someone sneezes while looking at a flash from a camera.
  3. An adult sneezes after stepping outside into the sunlight.

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