Immortality

====Cryonics====
{{Unreferenced section|date=November 2022}}
{{Main|Cryonics}}

[[Cryonics]], the practice of preserving organisms (either intact specimens or only their brains) for possible future revival by storing them at cryogenic temperatures where metabolism and decay are almost completely stopped, can be used to 'pause' for those who believe that life extension technologies will not develop sufficiently within their lifetime. Ideally, cryonics would allow clinically dead people to be brought back in the future after cures to the patients' diseases have been discovered and [[rejuvenation (aging)|aging is reversible]]. Modern cryonics procedures use a process called [[Cryopreservation#Vitrification|vitrification]] which creates a glass-like state rather than [[freezing]] as the body is brought to low temperatures. This process reduces the risk of ice crystals damaging the cell-structure, which would be especially detrimental to cell structures in the brain, as their minute adjustment evokes the individual's mind.