These are just a few of the Major Medical Websites available to you.
They are put here for your convenience.

National Institute of Health Center for Disease Control
Alzheimer's Association Arthritis Foundation
American Cancer Society American Diabetes Association
American Heart Association American Lung Association
Muscular Dystrophy National Kidney Foundation
National Mental Health Association United Cerebral Palsy Association
Weaners and Losers Rheumatoid Arthritis Support Network