Nine-year-old Jacob Martin of Dracut, Mass., has trouble sitting still during group time in class.
At first glance, this may not seem out of the ordinary. But while Jacob appears to be a typically restless fourth-grader, his experience stems from a condition that is more commonly associated with his grandparents. Jacob has arthritis.
Jacob's legs stiffen and swell as a result of polysystemic juvenile rheumatoid arthritis, a kind of arthritis that causes damage to numerous joints and tissues in...Full Story