I thought I'd send out this post from Mark's Daily Apple. It's about a study of early prostate cancer patients who, "on personal grounds unrelated to the study," decided to forgo conventional treatment. The study saw them improve their diet, exercise, and practice stress-reduction (yoga, meditation, visualization). After a period of time, their 'disease-fighting' genes showed an increase in activity, while the 'disease' genes showed a decrease.
I think I've mentioned it a few times before in this blog. You can do a lot for yourself just by eating well, moving around, and chilling out! (Not to neglect the rather important role of chemotherapy in my case.)