the body, just like your car, breaks down. Cancer is a thing that happens, not a specific malady that can be cured or prevented with any guarantee of success.
As I understand it, cancer cells come into existence in our bodies periodically throughout everyone's lives. They are identified and destroyed by the immune system. What we call "cancer" is when the body has failed to identify a particular type of cancer cell, and it runs wild. Typically, this is due to a defect in the immune system, which can be caused by multiple factors, one of which is poor diet over a long period of time.
