The underlying promise of every exciting medical discovery, diet, and exercise program is the same: do this, buy this, or eat this and you will look better, live longer, and be healthier. But few books can make the promise of this one: if you adapt these five simple, virtually-free suggestions you will live a longer and healthier life, guaranteed.

This is no fad study. Each of the recommendations outlined in this book has been proven by an overwhelming number of tests, trials, and studies to increase health and lifespan. There are no gimmicks, no catches, no ifs, ands, or buts.

Presented by a trusted expert, Dr. Sanjiv Chopra's The Big Five includes easily digestible data and startling results from real studies conducted by reputable universities and involving thousands of subjects. Readers of The Big Five can see for themselves that, without a doubt, these five simple actions offer many more proven benefits than the latest expensive supplements, fad diets, jazzy exercise programs, and state-of-the-art gym equipment.

DR. SANJIV CHOPRA is Professor of Medicine & Faculty Dean for Continuing Medical Education at Harvard Medical School, and Director of Clinical Hepatology at Beth Israel Deaconess Medical Center in Boston. He has approximately 100 publications and 4 specialist books to his credit and has received numerous awards including the Excellence in Teaching Award from Harvard Medical School.

DAVID FISHER is the author of more than fifteen New York Times bestsellers. He lives in New York.