A TWISTED ANKLE

I have always been accident prone and it continues into my 40's.  I have this habit of sitting on one foot, or sitting cross legged.  I know in my mind this is not good for me or my posture.  I always end up with my foot going to sleep, then I get up and try to walk.  This is not good to do when you can't feel your foot.

I get up and try to walk and I end up twisting my ankle like I did just a couple of days ago.  OUCH!