*Prader-Willi syndrome facts by John P. Cunha, DO, FACOEP. Prader-Willi syndrome (also called Prader-Labhart-Willi syndrome, or PWS) is a complex genetic condition. Infants have weak muscle tone (hypotonia), feeding difficulties, poor growth, and delayed development. read more
Prader-Willi syndrome is caused by the loss of function of genes in a particular region of chromosome 15. People normally inherit one copy of this chromosome from each parent. Some genes are turned on (active) only on the copy that is inherited from a person's father (the paternal copy). read more
Prader-Willi Syndrome (PWS) is a complex genetic disorder affecting appetite, growth, metabolism, cognitive function and behavior. A key feature of the disease is the constant sense of hunger that may begin around 2 years of age. read more