B Will Francy
The Angelman Syndrome affects one out of 16,000. It makes people have lots of seizures. Also it makes them have a happy demeanor. They have jerky movements a lot of times. This syndrome is contracted through genes. it shows up at about 10 to 12 months old.
This is a neuro-genetic disorder. the symptoms are sleep disturbances, jerky movements, and a happy demeanor. It is not fatal. it shows up at 6 to 12 months old. It happens when the UBE3A gene is not inherited. It is very rare. It was noticed when Dr. Harry Angelman noticed 3 children with the symptoms.