Chris Daigre has been dancing and teaching dance for more than 30 years. When he was diagnosed with Parkinson's Disease two years ago, Daigre didn't stop dancing--he expanded his program to other people with Parkinson's. As the administrator of Dance for PD (Parkinson's Disease) at Seattle Theatre Group, Shawn Roberts has seen dance benefit other people with the neurological disorder. Roberts and Daigre share their experiences.