Food is no longer sacred to us: in becoming too efficient we've changed its nature.

The more decisions we make in a day, the more likely we are to make bad decisions - because deciding wears us down. You start making decisions in the morning, and by the middle of the afternoon, you're running on fumes.

You cannot drive a system that's going to be aiming at preventing illness if everyone is not in it. The whole gaming of health insurance and health care in America is based on that fundamental principle: insure people who aren't sick and you don't have to pay more money on them.

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.

I was lucky enough to marry a wonderful chef.

I believe science has a wonderful ability, in an unbiased way, to offer hope to many people who are confused, but it's not the only way to find hope.

There are really two things that drive New Year's resolution success. Number one is telling somebody about your goal. Chances are, they'll either join you in pursuing it or at least support you. Number two is to be concrete and specific. You don't want a goal like "becoming a better person," because there's no objective way to judge that. It's got to be something like "I'm going to call my mother once a week." Or "I'm going to cut my body mass index to 25." It can't be fudgeable.