All articles tagged with #cryobiology
Wood frogs can freeze about 65% of their body water as extracellular ice each winter, stopping heartbeat and breathing for months; they survive by keeping cells intact, then thaw and restart life in spring, aided by high blood glucose that acts as a natural cryoprotectant—researchers hope to apply this to organ banking and cryopreservation.
Biogerontologist L. Stephen Coles had his brain preserved by cryonics; Greg Fahy reported the brain chunks were astonishingly well-preserved after more than a decade, fueling discussion about potential revival or future study, though many experts remain skeptical that the tissue could ever be revived.
An expert claims that frozen humans could be brought back to life in 50 to 70 years, citing the successful resurrection of a 46,000-year-old worm found in Siberian permafrost. However, the process would require significant advancements in medicine and tissue engineering. Cryoprotectant agents currently used in cryonic technology have toxic effects on the brain and body, making them insufficient for human revival. The ability to revive cryopreserved individuals could have profound philosophical, ethical, and medical implications, potentially offering an alternative to death for patients with terminal diseases.