How Your Body Knows Left From Right
Why are our bodies so symmetrical, but our guts aren't? ↓ More info and sources below ↓ Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub Follow on ...
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[music] We. Love. Symmetry. It's in our art, and architecture... we even balance equations on it. Our love of symmetry makes sense, because WE'RE symmetrical. Two eyes, two ears, two arms, and two legs. Bodies built like paper dolls. But that outward beauty is superficial. Peel back the curtain, and that symmetry disappears. Your guts are a mess. Unless you're from Gallifrey, you have one heart, on the left side of your body, same as your stomach and spleen, but your liver is on the right. Even organs that look symmetrical at first seem to tip one way or the other. The right lung is divided into three lobes while the left lung has only two. And in your brain, two areas needed for speech and language are found only on one lobe, usually the left. Animals as distantly rel...
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[music] We. Love. Symmetry. It's in our art, and architecture... we even balance equations on it. Our love of symmetry makes sense, because WE'RE symmetrical. Two eyes, two ears, two arms, and two legs. Bodies built like paper dolls. But that outward beauty is superficial. Peel back the curtain, and that symmetry disappears. Your guts are a mess. Unless you're from Gallifrey, you have one heart, on the left side of your body, same as your stomach and spleen, but your liver is on the right. Even organs that look symmetrical at first seem to tip one way or the other. The right lung is divided into three lobes while the left lung has only two. And in your brain, two areas needed for speech and language are found only on one lobe, usually the left. Animals as distantly rel...
