Epidemic obesity is an enormous problem. It's a pendulum that's swung too far. We have to swing it back. So it should come as no surprise that solution must be built from the ground up on the banks of this flooding river and it must be raised to a height higher than flood waters. Now what does that look like? It looks like policies and programs that cultivate healthy levels of physical activity, healthy dietary patterns in homes, in schools, in supermarkets, in neighborhoods, in clinics, in churches, in workplaces, throughout our society, every place we can reach people.

We have a society that monumentally conspires against the pursuit of health. We have wave after wave of labor-saving technology that says don't ever use your muscles for anything, along with messages that you should be more physically active. We have, every year, the introduction of hundreds, if not thousands, of new highly processed foods, the majority of which glow in the dark. At the same time we're telling people: eat foods closer to nature. We have schools where we teach children to sit still all day long so they can become adults we can't get off couches with crowbars.

We don't control everything. There are genetic influences. There are environmental exposures we don't control. I cannot guarantee anyone I counsel that by following what I hope is the good advice I offer them, they will live long and prosper. That's what I'm hoping for but I can't guarantee that. What I can tell them is this: "Look, I can help you firmly grip the wheel, and you can steer the ship. You're never going to control the winds and you're never going to control the seas. But if you sail well you can get through just about anything."

I think basic disease care access and basic access to health care is a human right. If we need a constitutional amendment to put it in the Bill of Rights, then that's what we ought to do. Nobody with a conscience would leave the victim of a shark attack to bleed while we figure out whether or not they could pay for care. That tells us that at some level, health care access is a basic human right. Our system should be aligned so that our policies match our morality. Then within that system where everybody has access, we need to incentivize prevention, both for the patient and the provider.

I naturally gravitate toward the big picture which isn't necessarily advantageous when you go on to a career in research because successful researchers usually choose a pretty narrow channel. So having tunnel vision actually helps you stay where you are supposed to stay. The big picture in medical care was looking at the underlying causes of all of this pathology. I really wanted to do something about that and play a meaningful role in changing the trajectory of people's lives and their health and by changing their health, changing the quality of their lives.

There is one thing that very reliably try to trumps the food supply and that is food demand. At the end of the day, the business of business is business and they are just trying to keep the customers satisfied, it depends what we want. The problem in our current mess is we want all the wrong stuff. Why do we want the wrong stuff? Because taste buds are very malleable little fellows. They learn to like what they know. We're bathing our taste buds in too much sugar, too much salt, too much processed food all day long. That's what they know and crave.

We have literature indicating that overwhelmingly, health is influenced by a very short list of modifiable behaviors topped by three: tobacco use, physical activity and dietary pattern. You could modify those three things; you can change people's fate. I wanted to change those. Smoking cessation, important but relatively simple - a lot of people are working on that. Physical activity: important to me, important to health but also relatively simple. I like nutrition. It's complicated; you really need to learn a lot of stuff to be an expert there.