sometimes forget that the greatest achievement of the 20th century was a doubling, a doubling of life expektpulation didn't make it to 5. today you go to 62 before 20% of the population passes away. and so, yes, we're living longer, cancer is more common, one in two men, one in three women. but as we focussed our attention and modern technology on cancer, the death rate from prostate cancer from projected levels has now dropped almost 50%. >> larry: how much of this is due to pharmaceuticals. >> if you look at the death rate, it hasn't changed a lot. i think that mike is a perfect example of how diet and lifestyle can make such a big difference. 17 years ago when we talked about these things, he has been making -- >> larry: no medications help then? >> i think medications, it's not one or the other, it's a combination of the two. but we did a study and we worked with men who had biopsy proven prostate cancer who had chosen not to have conventional treatment. and we found in a randomized controlled trial, that simple lifestyle changes could stop or reverse the growth of prostate cancer in man