Huntington's disease is a progressive brain condition that causes uncontrolled movements, emotional problems, and cognitive difficulties.
Huntington's disease is also called:
- Huntington disease
- Huntington chorea.
Huntington's disease affects an estimated 3 to 7 per 100,000 people of European ancestry. The condition appears to be less common in other populations, such as African Americans.
In the United States alone, about 30,000 people have Huntington's disease; about 1 in every 10,000 people is thought to have the condition. At least 150,000 other people have a 50 percent risk of developing it, and thousands more of their relatives live with the possibility that they, too, might develop HD.
Huntington's disease typically begins in middle age. This form is called adult-onset Huntington's disease. There is also an early-onset form (juvenile Huntington disease
) that begins in childhood or adolescence.