• Question: Why do we yawn

    Asked by LoLx4191 to Lewis, James, Sandra on 15 Mar 2017.
    • Photo: James Martin

      James Martin answered on 15 Mar 2017:

      it’s a reflex caused by the brain, to give more oxygen to the body.

    • Photo: Sandra Greive

      Sandra Greive answered on 15 Mar 2017:

      One theory is that yawning is a way of increasing the oxygen supply to the brain with a deep breath to counter-act the sleepy feeling. But another question is, why does watching someone else yawn make you feel like yawning too? I have no idea.

    • Photo: Lewis Wright

      Lewis Wright answered on 15 Mar 2017:

      Humans also yawn sympathetically, meaning it’s a sign of friendship.

      If you are in a room with someone you like and they yawn, chances are so will you. Its a form of body language to tell people that you are friends with them 🙂

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