People who are lonely and depressed are three to 10 times more likely to get sick and die prematurely than those who have a strong sense of love and community. I don’t know any other single factor that affects our health - for better and for worse - to such a strong degree.

People don't dislike change, they dislike being changed.

The need for love and intimacy is a fundamental human need, as primal as the need for food, water, and air.

Whether you're six or sixty, if you go on a diet and lifestyle program and feel constrained, you're likely to go off it sooner or later. Offering a spectrum of choices is much more effective; then, you feel free and empowered.

When most people think about my work, they think about diet. To me, diet has always been the least interesting part of it.

People tend to think of breakthroughs in medicine as a new drug, a laser, or a high-tech surgical procedure. They often have a hard time believing that the simple choices that we make in our lifestyle. What we eat, how we respond to stress, whether or not we smoke cigarettes, how much exercise we get, and the quality of our relationships and support can be as powerful as drugs and surgery. And they often are.

Although scientists can often be as resistant to new ideas as anyone, the process of science ensures that, over time, good ideas and theories prevail.