how do you know if youre double jopinted

Question: how do you know if youre double jopinted
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Asked by nicolebieber to Ed, Hayley, Jason, Nathan, Sophie on 21 Mar 2013.
- Sophie Holles answered on 21 Mar 2013:
  
  There isn’t exactly such a thing as double jointed.. but some people genetically have more mobile joints than others because of bone structures and ligaments. For example the ball and socket joints in shoulders and hips – if the ball sits shallower in the socket it will be able to move more.

Question: how do you know if youre double jopinted