Why Do People Startle at Sudden Sounds?

People startle at sudden sounds because their brain thinks something dangerous is happening. Imagine you're playing with your toys and a big, loud noise happens, like a thunderclap! Your brain goes ‘Oh no! Something might be coming!’ and makes your body jump to get ready for action.

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Examples

  1. You're watching TV when your brother suddenly shouts, you jump!
  2. A loud crash in the kitchen makes you turn around quickly.
  3. Your dog barks unexpectedly, making you startle.

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