Multiple sclerosis -- MS -- strikes about one in a thousand North Americans, usually in early adulthood, when they are building careers and starting families. Because the disease involves the central nervous system, its effects are wide-ranging and difficult to predict. Multiple The Facts You Need -- part of the Your Personal Health Series -- is a fact filled, comprehensive guide to living with MS, supported by diagrams, case histories, a drug table and an extensive list of helpful books and organizations. Topics