Double Jointedness
It has recently come to my attention that most people's thumbs don't bend backwards.
I always assumed that people's "last joint" on the thumb was supposed to allow about as much mobility bending forwards as it does backwards.
Now, I can move my thumb back and forth (that joint has 180 degrees of range) using my muscles. For my other fingers, I have to bend the finger with my other hand. But I end up with about 135 degrees before my joints actually protest.
How rare is this kind of double jointedness?
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Last edited by JHVH : 10-29-4004 BC at 09:00 PM. Reason: Time for a rest.
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