I think there are definitely limitations at times. If you start to feel sick, there are limitations on your schedule- you have to cut back on what you're doing and try not to be quite as busy and be careful about what you're eating and what you're doing. But I try not to limit myself at all- I try to at least work through things and see what happens, and if it ends up that I can't do it, then fine. I mean, I'm not going to be a world traveler going to places where you have to eat strange food and can't have the doctors that you might need around, but I'm not going to stop doing things. I think that's the most important part for me- just making sure that I know I'm going to try everything. I might not be able to do everything, but at least I can make that effort.