 Brain diseases, including Parkinson's, are now the leading cause of disability. Is enough research being done on prevention? Here with the story, InfoTrack's Roy Mackey. Roy? Thank you, Chris. We're joined by Dr. Ray Dorsey. He is the David M. Levy Professor of Neurology and Director of the Center for Health and Technology at the University of Rochester Medical Center. He's also one of the co-authors of Ending Parkinson's Disease, a Prescription for Action.