There is the kind of pain that happens when you stub a toe or slice your finger cutting vegetables. Then there is chronic pain, an enduring pain that can last for weeks, months, or even years.

Venus Williams, one of the most exciting female athletes in recent history, was forced to pull out of the 2011 U.S. Tennis Open due to her recent diagnosis with its accompanying symptoms of Sjogren's syndrome. Her statement voiced her usual positive, appreciative attitude: "I enjoyed playing my first match here and wish I could continue, but right now I am unable to.” She added,“I am thankful I finally have a diagnosis and am now focused on getting better and returning to the court soon." Keep in mind Venus was the U.S. Open champion in 2000 and 2001, so her decision to pull out of ...