After 30 years, my research at the border between life and death has led me to believe that, traditionally defined, death may not be the very end that science once maintained. The investigation began through curiosity into near-death experiences but eventually became a full-blown inquiry into cryonics, cellular regeneration, and suspended animation.
The Definition of Death Is Changing
Death used to be declared by the cessation of heart motion and breathing. Modern medicine, however, has eroded that line. This interference is evidence that with CPR and defibrillation, and ECMO (extracorporeal membrane oxygenation), patients previously regarded as “dead” can be revived hours after cardiac arrest.
The next frontier will be reversal after brain death. Researchers have managed to revive cellular activity in the pig brain hours after death using a system called BrainEx. While consciousness was not restored, it nonetheless showed that neural degradation is not instantaneous and is possibly reversible.
Cryonics and Suspended Animation
The long-held concept of cryonics, or the preservation of human corpses at ultra-low temperatures, has generally been discarded as speculative. However, with recent breakthroughs in solving the problems of cryopreservation, namely vitrification (which prevents ice crystal damage) and the advances in nanotechnology, one could postulate scientists in the future would be able to intervene and repair cryopreserved patients.
The military and space agencies have also seen interest in emergency preservation and resuscitation (EPR), whereby they can cool trauma victims down to freezing temperature to “buy time” for surgery. Human trials have shown promise; some patients have survived otherwise fatal injuries.
Cellular Reprogramming and Regeneration
Aging and dying are biological processes. Following Dr. David Sinclair at Harvard, scientists have been able to reverse the aging process in mice using epigenetic reprogramming. If aging can be slowed down or reversed, could the same happen concerning death?
Startups such as Altos Labs and Life Biosciences are throwing billions into cellular rejuvenation. The general idea is that if we can heal the damage to cells, tissues, or organs, then we could start restoring function one day in bodies that have technically died.
The Ethical and Philosophical Implications
If death is no longer a must, society will be forced to confront troubling questions:
- Who gets life extension?
- Would overpopulation become unsustainable?
- Can the brain still remember and identify the personality of the individual after being revived?
While none of these questions are fully answerable, the science is already evolving faster than most realists comprehend.
Finalizing: Death Might Not Be the End
With 30 years of research behind me, I have come to see death as no longer an inevitability but rather as a medical condition which might in time be curable. We embark on an age where the distinction between life and death is neither fixed nor flowing. What life could mean might undergo radical redefinition in the next few decades.
