Syväjäädytystekniikkaa

Syväjäädytystekniikkaa, also known as cryonics, is a speculative practice in which the body of a deceased person is preserved at extremely low temperatures with the hope that future medical technology will be able to revive them and cure their ailments. The process typically involves cooling the body to below -130 degrees Celsius, usually using liquid nitrogen. Before cooling, the body's blood is replaced with cryoprotective agents, which are antifreeze-like substances intended to prevent ice crystal formation that could damage cells.

The primary motivation behind cryonics is the belief that current medical science is insufficient to cure all diseases and that future advancements might offer solutions. Proponents believe that by preserving the body in a stable state, the deceased person's consciousness or identity might be preserved as well, allowing for a potential resurrection in the future. Organizations offering cryonics services typically require a contract to be signed while the person is still alive, and the procedure is carried out immediately after legal death is declared.

However, cryonics is not scientifically proven and faces significant challenges. The primary concern is whether consciousness or identity can truly be preserved through such a process, and whether damaged tissues can be repaired. The long-term stability of the preserved tissues at cryogenic temperatures is also a subject of debate. Currently, there is no scientific evidence to suggest that cryonics can successfully lead to revival. It remains a fringe practice with a strong element of faith in future technological capabilities rather than established scientific principles.