Dean Ornish

In an era in which war and terrorism - at home and abroad - are often based on racial, religious and ethnic differences, rediscovering the wisdom of love and compassion may help us increase our survival at a time when an increasingly divided country and world so badly need it.

No one has a monopoly on truth, and science continues to advance. Yesterday's heresies may be tomorrow's conventional wisdom.

I strongly believe that the Founding Fathers of our country got it right: power corrupts, and any time you have too much power concentrated in one place, it tends to get abused, so checks and balances are always needed.

Reimbursement is a major determinant of how medicine is practiced. When reimbursement changes, so do medical practice and medical education.

I am as non-accepting of medical quackery and unscientific approaches as anybody else. I've grown up as a card-carrying scientist, and I know the power of science to answer questions, and for many questions I don't know of anything better than scientific approaches to answer them.

Whether it's by helping us search for health-related information, connecting us with doctors through online portals, or enabling us to store and retrieve our medical records online, the Internet is starting to show the promise it has to transform the way people interact with and improve their own health and wellness.

Let's all be more humble about the evidence behind medical advice but also respect the challenges to providing accessible lifestyle guidance.

Meaningful health reform needs to provide incentives for physicians and other health professionals to teach their patients healthy ways of living rather than reimbursing primarily drugs and surgical interventions.

How you eat is as important as what you eat. If I eat mindlessly while watching television, I get all of the calories and none of the pleasure. Instead, if I eat mindfully, paying attention and savoring what I'm eating, smaller portions of food can be exquisitely satisfying.

The need for connection and community is primal, as fundamental as the need for air, water, and food.

When the U.S. claims the right to invade any country unilaterally and then defines a country like Iran or North Korea as 'evil,' then it is a rational response for these countries to develop nuclear weapons as the only military deterrent to invasion. We create what we most fear.

If we're not careful, we become that which we most fear.

When you grow up in an extended family, or in a stable neighborhood with two or three generations of families who live there, you feel seen. Not just the good things you've done, the stuff you put on your resume. You know they've seen you in your dark times, when you've messed up - but they're still there.

The choices you make each day in your diet and lifestyle have a direct influence on how your genetic predisposition is expressed - for better and for worse. You're only as old as your genes, but how your genes are expressed may be modified by exercise, diet and lifestyle choices much more than had previously been believed - and more quickly.

Although many people believe that the primary emphasis of my work is about diet, it's not. What we eat is important, of course, but what comes out of our mouth may be more important than what goes into it.

Because the biological mechanisms that affect our health and well-being are so dynamic, when people change their diet and lifestyle, they usually feel so much better, so quickly; it reframes the reason for changing from fear of dying to joy of living. Also, the support that patients give each other is a powerful motivator.

If you're at high risk or are trying to reverse heart disease or prevent the recurrence of cancer, you probably need to make bigger changes in diet and lifestyle than someone who just wants to lose a few pounds and is otherwise healthy. If you just want to lower your cholesterol, weight or blood pressure, begin by making moderate changes.

If you go on a diet and feel constrained, you are more likely to drop it. But if you see your food choices each day as part of a spectrum, then you are more likely to 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.

An Asian way of eating and living may help prevent and even reverse the progression of coronary heart disease, diabetes, hypertension, obesity, prostate cancer and breast cancer. Incorporate more fruits, vegetables, whole grains, legumes, soy products and fish in your diet. Eat at home more with your family and friends.