Hanging is the suspension of a person by a noose or ligature around the neck. The Oxford English Dictionary states that hanging in this sense is “specifically to put to death by suspension by the neck”, though it formerly also referred to crucifixion and death by impalement in which the body would remain “hanging”. Hanging has been a common method of capital punishment since medieval times, and is the official execution method in many countries and regions. In this specialised meaning of the common word hang, the past and past participle are usually taken to be hanged instead of hung. Hanging oneself is a method of suicide in which a person applies a ligature to the neck and brings about unconsciousness and then death by suspension. Partial suspension or partial weight-bearing on the ligature is sometimes used, particularly in prisons, mental hospitals or other institutions, where full suspension support is difficult to devise, because high ligature points (e.g., hooks or pipes) have been removed.