If it were as simple as mind over matter I doubt that any of us would be sitting on the couch wishing we could be outside doing something else.

While I'm happy for this guy......those who don't have MS tend to think that this applies to everyone. I'd love to be able to run or climb stairs again. Never in a million years did I ever think I wouldn't be able to do those things at 50. It's just annoying when others see stories like this and think I'm just not trying hard enough.