Initially, there was the definition of death when breathing and the heartbeat ceased. įiguring out when someone is dead has been a problem. However, they can still die from other means 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 begin to decompose shortly after death. For organisms with a brain, death can also be defined as the irreversible cessation of functioning of the whole brain, including the brainstem, and brain death is sometimes used as a legal definition of death. 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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