Prader-Willi Syndrome (PWS) is a birth defect first identified in 1956 by
Swiss doctors A. Prader, H. Willi, and A. Labhart. There are no known
reasons for the genetic accident that causes this lifelong condition, which
affects appetite, growth, metabolism, cognitive functioning and behavior.
The best source of support and information on Prader-Willi Syndrome can be found at the
Prader-Willi Syndrome Association (USA) Website or by calling the
office. If you are a new parent - please be sure to first contact
someone at the National Office at 800-926-4797.