Huntington's disease is a rare inherited (genetic) disorder that
causes parts of the brain to break down and lose some normal
functions (degeneration). It is also called Huntington's chorea.
Symptoms of the disease usually develop after age 40 and include
rapid, jerky movements (twitches in the face and jerks of the
arms) that cannot be controlled (chorea) and the gradual loss of
mental abilities (dementia), leading to personality changes,
behavior problems, and memory loss. There is no known cure for
the disease. Treatment with medications may help control the
involuntary movements. eMedicineHealth Medical Reference from
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