Huntington's Disease, also known as Huntington's Chorea, is a genetic disorder that affects the nervous system. The disease is caused by a mutation in the HTT gene, which produces a protein called huntingtin. The progressive neurological disorder causes involuntary movements, cognitive decline, and emotional disturbances. In addition to Huntington's Chorea, the disease is also sometimes referred to as Huntington's Dementia or simply HD. Other synonyms may include Hereditary Chorea, Adult-Onset Huntington Disease, and Juvenile-Onset Huntington Disease, which are used to describe how the disease manifests in different age groups. Regardless of the synonym used, Huntington's Disease is a life-changing condition that requires specialized care and management.