We do indeed have stunning potential control over our health, and should make better use of it. Our feet and forks are, or should be, the master levers of medical destiny. But even the best application of skill-power will not turn weight into a behavior. Weight is not a choice, and we should all choose to recognize that.
Have you ever wondered why some people seem to do very well on a diet and exercise plan, while others seem to fail with the same plan? Much of this is due to the fact that everyone has a unique body type that will respond differently to a specific workout or nutrition plan. This is a concept known as "somatotyping."