This isn't my story, per se, but it is an ongoing, and to me uplifting, one. The only reason that I'm posting it is because I think it serves as a bit of inspiration (and because I'm fairly sure that he won't mind).
About a year ago, a regular member of our gaming group, as well as a close longterm friend, was involved in an auto accident that caused permanent memory loss. At this time, he had taken a gaming hiatus that had lasted half a year. For some time after the accident he had problems with simple everyday tasks (up to and including reading). When his doctor told him to reconnect with his old hobbies in order to help with his condition, he decided that he would come back to the table and spend some time with his friends there.
At first, it was very difficult for him. We ended up having to teach him how to play again, and he had a hard time grasping the number mechanics of the game again. But now, I couldn't be prouder of him. He plays with us on a regular basis, and is a fully contributing member of the group.
Quite frankly, I believe that gaming helped him overcome the damage caused by the accident.
And I've never been more grateful for the game....