The tern euthanasia refers to a deliberate act by a person of putting himself or herself to death in a painless manner, the need for which arises from the fact that the person is suffering from incurable and terminal illness. Voluntary euthanasia is the related term which refers to the act of ending a person's life upon his or her request. Whereas the assisted suicide implies the act of deliberately putting oneself to death with the assistance of another person who typically helps the person being killed in terms of provision of knowledge, means or both in some cases.