Michael J. Fox reveals how Parkinson's disease has changed his outlook on faith, family and politics. Plus, Michael and Dr. Oz discuss the stem cell debate.

Michael J. Fox speaks out about stem cell research, life with Parkinson's Disease and his new book on The Oprah Winfrey Show

Mehmet Oz, MD, host of The Dr. Oz Show, sheds light on a life-threatening disease that afflicts millions of Americans, many of whom have no idea they're even at risk.

Learn the most common causes of a bad mood (some will surprise you), and how to fight them off.

Dr. Oz explains how science and technology are helping people live longer, healthier lives. New advances in tissue regeneration and more! Plus, the smartest toilet you've ever seen.