I get a little tired of hearing this. Study after study after study indicates that diet and lifestyle play a major role in all major deadly diseases. I was an American military wife for a couple of decades. Even after my divorce, I was entitled to free medical care at tax-payer expense. I did nothing to try to preserve that entitlement* because I was too busy making the dietary and lifestyle changes I needed to make in order to get well when I was told by some specialist that I would never get well. Eat right, exercise, don't smoke, don't drink to excess and all that other boring advice no one wants to hear and you greatly reduce the odds that you will need expensive medical care.

* And I'm saving the American public quite a lot of money because my medical condition is one of the more expensive chronic incurable conditions out there. It annoys me that it's all coming out of my pocket to get well but other folks would happily pay through the nose to help me stay sick and keep me a lifelong legal drug addict. /Rant