Yazata
Valued Senior Member
so you are saying death is more than your heart stopping and being brain dead?
My answer would be 'yes'. I'd define 'death' in the biological sense as cell death, as the permanent disruption and cessation of cell biochemistry and ultimatly the lysis and disintegration of the cell.
On an organismic level, death would consist of cell death on such a scale that further continuation of physiological functions becomes impossible.
The idea of heart stoppage or brain death being an indicator of death is a legal criterion, not a biological one. The law needs to have some criterion to distinguish between a living individual and a dead one, since living people have a legal status that's very different from that of corpses.
In ancient times, breathing was often taken to be the criterion. But we all know that it's often possible to revive people who have stopped breathing. So in the 19'th century, physicians promoted a new standard that employed heart stoppage as the indicator of an individual's death. Of course today it's basically routine for surgeons to stop and re-start hearts in order to perform repairs.
That motivated the widespread adoption of irreversable brain-death, defined in this case as brain inactivity as measured by EEGs, as the legal criterion of death in the 20'th century.
Note the word 'irreversable'. Simply rendering somebody unconscious, even if their heart is stopped, doesn't qualify as death. And the fact that NDE cases revive to tell their tales of what death is supposedly like indicates that none of their situations was ever irreversable. So none of their situations ever satisfied the legal criterion of death.
The problem with brain death defined as irreversible brain inactivity is that it's very hard to define and measure, since many severely brain-injured individuals might show little cortical activity, but still some residual activity deeper in their brain stems. So there's an active debate among physicians, lawyers and courts about what level of brain inactivity qualifies. And there are the underlying problems of determining what level of brain damage is truly irreversable and what level of brain activity corresponds to the presence or absence of a conscious 'self'.