Scientists have achieved a remarkable feat by reviving microscopic creatures that were frozen in the Siberian permafrost for 46,000 years. These ancient nematodes, known as roundworms, have the ability to enter a state of suspended animation called anabiosis when faced with unsuitable conditions. The worms were discovered in a frozen squirrel burrow in 2018 and were simply placed in water to awaken them from their dormant state.
The question arises whether similar means could be used to resurrect frozen humans. A cryonics expert explains that there are differences in cryopreservation between humans and animals. However, advancements in technology may pave the way for the resurrection of frozen humans, just like the fictional character “Encino Man,” within the next 50-70 years.
Valeriya Udalova, CEO of KrioRus, a Russian cryogenics company, says that restructuring human metabolism to enter anabiosis, like animals, is unlikely. She suggests that it might be easier to create artificial bodies. At KrioRus, humans are drained of blood and connected to a circulatory machine filled with cryoprotectant solutions to safeguard cells and tissues. The deep-freezing process ideally begins immediately after legal death is declared, with bodies frozen to -196°C.
Udalova predicts that major advancements in medicine and tissue engineering would be necessary for the resurrection of frozen humans, and she believes this could be possible within the next 50-70 years. However, she mentions the scarcity of cryobiological laboratories and the current limitations of cryoprotectant agents, which have toxic effects on the brain and body parts. Dr. João Pedro de Magalhães, a Portuguese microbiologist, also emphasizes the need for significant scientific progress in areas like tissue engineering and regenerative medicine to restore cryopreserved individuals to life and health. If successful, cryonics technology could offer an alternative to death, allowing patients with terminal diseases to be placed in cryostasis until a cure is found.
The prospect of resurrecting frozen humans raises profound philosophical, ethical, and medical questions. While challenges remain, the scientific community continues to push the boundaries in the pursuit of groundbreaking advancements in cryopreservation and its potential implications.
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