Parkinson ’s Disease is a degenerative brain disorder causing gradual loss of muscle control, usually afflicting older people. Its cause is currently unknown. In this program Stanley Fahn of the Columbia-Presbyterian Medical Center, David Roberts o f the Dartmouth-Hitchcock Medical Center, Paul Newhouse of the University of Vermont and patients suffering from Parkinson’s comment on the disease, coping with it, and possible cures. Host Jamie Guth.