Dean Ornish shares new research that shows how adopting healthy lifestyle habits can affect a person at a genetic level. For instance, he says, when you live healthier, eat better, exercise, and love more, your brain cells actually increase.

Dean Ornish talks about simple, low-tech and low-cost ways to take advantage of the body's natural desire to heal itself.

Forget the latest disease in the news: Cardiovascular disease kills more people than everything else combined -- and it’s mostly preventable. Dr. Dean Ornish explains how changing our eating habits can save lives.

Dean Ornish is a clinical professor at UCSF and founder of the Preventive Medicine Research Institute. He's a leading expert on fighting illness -- particularly heart disease with dietary and lifestyle changes.

There's never a bad time to start a good habit. Let these talks set the framework for a healthier, happier life.

It is the New Year’s Resolution that you make over and over again. Here, talks to help you actually stick to it—and do it in a kind, effective way.

It's easy to worry about food: Are we eating the wrong stuff? What about people who don't have enough to eat? These talks examine the problems -- and some compelling solutions.

When film critic Roger Ebert lost his lower jaw to cancer, he lost the ability to eat and speak. But he did not lose his voice. In a moving talk from TED2011, Ebert and his wife, Chaz, with friends Dean Ornish and John Hunter, come together to tell his remarkable story.

Hungry for inspiration but short on time? Watch these snack-sized talks.

Kathryn Schulz, author of Being Wrong: Adventures in the Margin of Error: "We need to be able to look at the vastness and complexity of the universe and say, 'Wow, I dunno. Maybe I'm wrong.'" John Hunter, creator of World Peace Games says,  "I allow them to learn, in a bloodless way, how to do what's right." Legendary film crit...

If you look at mortality data across the United Kingdom, a striking correlation materializes: the higher the latitude, the greater the relative risk of death. This is true even when controlling for risk factors like smoking cigarettes and eating bad food. So, what’s going on? The answer may lie in sunlight—there’s more in the south than there i...

William Li presents a new way to think about treating cancer and other diseases: anti-angiogenesis, preventing the growth of blood vessels that feed a tumor. The crucial first (and best) step: Eating cancer-fighting foods that cut off the supply lines and beat cancer at its own game. NOTE: This talk was given in 2010, and this field of science h...