Here's the number one reason Americans are heavy: The brain, very smartly, wants nutrition. But the average American is not eating nutrients; he or she is eating empty calories. So you finish that 2,000 calories and your brain says, Keep going until you get nutrients.

We don't walk. We overeat because we've made it easy to overeat. We have fast-food joints on every corner. By the way, the 'we' is all of us. It's not the government. It's all of us doing this together.

There were certain elements of the healing process I could not capture. And even if I was right in the science, I could be wrong in the spirit.

Every hour you sit at work increases your mortality 11 percent. Think about that.

A lot of folks believe their best years are behind them. But I want Americans to recognize that's not true.

We need a wholesale reevaluation of what health feels like. Most Americans don't even know what that is anymore. I want to tell people, "Listen, there are places where you can focus on your health, and it can actually be simple."

The biggest mistake people make is to try to lose too much weight too fast.