![]() ĭeath is generally applied to whole organisms the similar process seen in individual components of an organism, such as cells or tissues, is necrosis. Some believe that even if the brainstem is still alive, the personality and identity are irretrievably lost, so therefore, the person should be entirely dead. Some people believe that all brain functions must cease. Brain death was the next option, but several definitions exist for this. However, the development of CPR meant it was no longer strictly irreversible. Initially, death was defined as occurring when breathing and the heartbeat ceased, a status still known as clinical death. ĭetermining when someone has definitively died has proven difficult. However, they can still die from means other than aging. Some organisms, such as Turritopsis dohrnii, are biologically immortal. Death is an inevitable process that eventually occurs in all organisms. The remains of a former organism normally begins to decompose shortly after death. Brain death is sometimes used as a legal definition of death. For organisms with a brain, death can also be defined as the irreversible cessation of functioning of the whole brain, including the brainstem. The human skull is used universally as a symbol of death.ĭeath is the irreversible cessation of all biological functions that sustain an organism. ![]()
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