Huntington's Chorea is a hereditary neurological disease which occurs in adulthood and manifests itself in involuntary bodily movements and progressive physical and mental deterioration. It is irreversible and responds to no therapy. Its course is about fifteen years in duration, death usually resulting from an intercurrent illness. Not only does it entail a catastrophic health problem for the person affected, but it also creates major emotional-social-financial problems for his family, and challenges the medical-social resources of the entire community.