Athetosis refers to the slow, involuntary, and writhing movements of the limbs, face, neck, tongue, and other muscle groups. The fingers are also affected, with their flexing happening separately and ...

Individuals with Coffin-Siris syndrome typically have distinctive facial features and may experience developmental delays. Other symptoms include feeding difficulties and issues with vision and ...

Prader-Willi syndrome is a genetic disorder that affects growth, behavior, and learning. There is no cure for the syndrome, but continual monitoring and treatment may improve a person’s quality of ...

Narcolepsy causes uncontrollable "sleep attacks" during your daily activities, regardless of how much sleep you get. You may have hallucinations, and sleep paralysis can occur when you are falling ...