An excellent article from Dr. Mercola's site asks this question. A quote: "Your answer to this question can increase or decrease the quality and length of your life, so consider carefully: Who is responsible for your health?" This is very, very true. We are individually responsible for our health and longevity. We cannot sit back and hope to be healthy, just as we cannot sit back and hope that the future of medical science turns out to be rosy. We must work for a positive outcome both in our personal health and in the future of medicine.