Huntington Disease (HD) is an untreatable condition with an hereditary basis, autosomal dominant, progressive and Neurodegenerative, with average beginning age in-between 35 and 44 years old. Choreic movements are the major feature of this disease, but the most precocious symptoms are psychiatric alterations. Studies reveal depression numbers to be double than those found in the general population, with disturbing numbers in suicide attempts. Behavioural alterations (psychotic symptoms, agitation, irritability, and insomnia) may become severe in long-term course.