Huntington’s disease is a progressive brain disorder caused by a single defective gene on chromosome 4.

Symptoms

Include abnormal involuntary movements, a severe decline in thinking and reasoning skills, and irritability, depression and other mood changes.

Brain changes

The gene defect causes abnormalities in a brain protein that, over time, lead to worsening symptoms.

Other Types of Dementia

• Alzheimer’s disease  Learn more
• Vascular dementia  Learn more
• Dementia with Lewy bodies (DLB)  Learn more
• Mixed dementia  Learn more
• Parkinson’s disease  Learn more
• Frontotemporal dementia  Learn more
• Creutzfeldt-Jakob disease  Learn more
• Normal pressure hydrocephalus  Learn more
• Huntington’s disease  Learn more
• Wernicke-Korsakoff Syndrome  Learn more