Michael J. Fox has credited his Parkinson's Disease with helping him become a better actor. The Back to the Future star has refused to step back from the spotlight despite his condition and he has often appeared in guest roles on TV shows in recent years. Now, as he prepares to launch his own sitcom, The Michael J. Fox Show, he admits that the health diagnosis that threatened to end his acting career has motivated him to get to grips with his craft. He tells Rolling Stone magazine, "I had a certain fluidity to my movements and rhythm of speech and a physicality that I had depended on. It served me really well, but when that was taken away, I found that there was other stuff that I could use. "That hesitation, that Parkinsonian (sic) affect, is an opportunity to just pause in a moment and collect as a character and respond to what's happening and just gave me this kind of gravitas. It really gave me a new view of things." And Parkinson's Disease has cured him of his nerves: "I used to be really nervous and sit in my dressing room and fret about a scene that was coming up and sweat it out and say, 'What am I going to do? You say action and I have to do something. What am I going to do? And what's that actor going to do? And how do I respond to that?' "Now it's just like, 'OK, what's happening?' And something happens, I react to it and if nothing happens, I don't react. I don't worry about that bit I was going to do or the look I was gonna give because when I get there, I may not be able to give that look or do that thing or move that glass."