The right to die is a concept based on the opinion that human beings are entitled to end their life or undergo voluntary euthanasia. Possession of this right is often understood that a person with a terminal illness, incurable pain, or without the will to continue living, should be allowed to end their own life, use assisted suicide, or to decline life-prolonging treatment. The question of who, if anyone, may be empowered to make this decision is often subject of debate.