Why Do Humans Get 'Butterflies' in Their Stomachs?

Sometimes, when you're really excited or nervous, your tummy feels like it has little butterflies flying around. That happens because your brain sends messages to your stomach, telling it to get ready for action. When you feel happy or scared, the messages make your stomach muscles twitch, and that's what causes the fluttery feeling.

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Examples

  1. You get butterflies in your stomach before a big test because you're excited and nervous.
  2. A child gets butterflies before going on stage for a performance.
  3. Your tummy flutters when you're about to meet someone special.

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