Why Do We Blink When We’re Surprised?

We blink when we're surprised because our brain sends a quick message to our eyes. Imagine you're playing hide and seek, and suddenly someone jumps out from behind the couch, your brain is like a fast runner who shouts, 'Look out!' and makes your eyes shut for just a moment so you can process what happened.

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Examples

  1. You're watching a movie and suddenly the screen flashes, you blink almost instantly.
  2. Your friend jumps out from behind a door, and you can't help but blink at the surprise.
  3. A loud crash happens while you’re eating, your eyes shut for just a second.

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