Even low-calorie diets and vigorous exercise fail to work in the long term for at least some people.

American businesses are struggling to pay outrageous, exploitive insurance bills for their employees, hampering our ability to compete globally.

I find that low protein diets often contribute to improvement in patients with immune system problems ... In fact, it would be hard to become deficient in protein in our country even if you tried.

I am a particular fan of integrative exercise - that is, exercise that occurs in the course of doing some productive activity such as gardening, bicycling to work, doing home improvement projects and so on.

Just the attempt to learn a [new] language is like running different software through the brain.

The world is beset by many problems, but in my opinion, this hijacking of our brain's reward centers by electronic media is potentially one of the most destructive.

By keeping my hand in that, it's the way I keep learning. The main way you learn in medicine is by practicing and working with patients.