This Wikipedia article is about death in the different cultures around the world as well as ethical issues relating to death, such as martyrdom, suicide and euthanasia. Death refers to the permanent termination of life-sustaining processes in an organism, i.e. when all biological systems of a human being cease to operate. Death and its spiritual ramifications are debated in every manner all over the world. Most civilizations dispose of their dead with rituals developed through spiritual traditions.