Does anybody know the evolutionary explanation of why little kids lie on their backs when they are unhappy? They all do it, and it’s like an instinct. Unhappy, boom, drop down. What’s the mechanism here?

A lot of stuff that little kids do becomes instantly clear when you look at the evolutionary advantage. As I always say, nothing teaches evolution like parenthood.

10 responses to “Evolutionary Explanation”

    1. Clarissa Avatar

      So cute! And it’s absolutely true, the small children’s first goal is to be fed but being entertained comes as a very close second. 🙂

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  1. PaulS Avatar
    PaulS

    I dunno, but dogs also always lie on their backs. Some sort of sign of submission and helplessness.

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    1. Pen Avatar
      Pen

      This analogy doesn’t fit well — dogs very often don’t do that if they’re unhappy and insecure, because showing their bellies makes them vulnerable. They’re more likely to pace, refuse to sit or lie down, or lie on their stomachs and refuse to roll over. You can condition a dog to lie on their backs more often and in certain situations, but it’s by far not an instinctual thing.

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  2. cliff arroyo Avatar

    “why little kids lie on their backs when they are unhappy? ”

    Not sure about why they lie down but I think lying on their back is less dangerous (can still see predators or other approaching dangers).
    Maybe at young ages the emotion interferes with physical control so they lie down to keep from falling or collapsing….

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    1. cliff arroyo Avatar

      Also…. isn’t breathing easier when they lie on their backs?

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  3. Maria Avatar
    Maria

    Without civilization, when you lie on your back, you look at the sky. The sky is so grand both during the day and the night that it’s possible it helps you put your problems into perspective. Looking at the sky is also very calming. I think it’s just a natural soothing mechanism.

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  4. Adam Avatar
    Adam

    Lying on your back sends a message to the brain that it’s time to sleep, which in turn triggers parasympathetic nervous system, shifting emotions away from anger towards a calmer state.

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    1. Clarissa Avatar

      Ah! This actually makes sense. Very interesting.

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  5. mitchellporter Avatar
    mitchellporter

    I thought it might signal vulnerability. “I need to be picked up and carried”.

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