Prader-Willi

Produced By Melanie Ragland
Thursday, April 3, 2008 | 6:42 p.m. PDT
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Prader-Willi syndrome is a rare chromosomal disease that affects about one in 25,000 people. One of the most noticeable symptoms of Prader-Willi syndrome is hyperpiesia, a disconnect in the brain that causes an uncontrollable appetite. Unable to have an independent life, the victims of Prader-Willi syndrome must rely on the support of their family to regulate food intake.