In a new study, UCLA Health researchers have found that motor delay and low muscle tone were common signs of an underlying genetic diagnosis in children with neurodevelopment disorders.

Researchers have found that motor delay and low muscle tone were common signs of an underlying genetic diagnosis in children with neurodevelopment disorders.

A deficiency in growth hormone can affect the development of your skeleton and muscles. Learn about symptoms, causes, and treatment in children and adults.

Prader-Willi syndrome (PWS) is a rare genetic disorder that develops due to the deletion of chromosome 15. People with PWS may experience poor growth and low muscle tone in childhood, low muscle ...