Following award-winning actor Alan Alda's revelation that he has Parkinson's disease, "CBS This Morning" spoke with Rachel Dolhun, MD, vice president of medical communications at The Michael J. Fox Foundation about Parkinson's prevalence, risk factors and exercise to manage disease.

Watch the entire interview on CBS This Morning. Then, learn more on the basics of Parkinson's disease with the "What Is Parkinson's?" whiteboard video, narrated by Dr. Rachel Dolhun.