Syväjäädytystä

Syväjäädytys, known in English as cryonics, is the practice of preserving a human body at extremely low temperatures, typically with the hope of future revival. The process involves cooling the body to liquid nitrogen temperatures, around -196 degrees Celsius (-321 degrees Fahrenheit). This is generally undertaken shortly after legal death, with the aim of preventing further cellular decay.

The core idea behind syväjäädytys is that future medical technology may be advanced enough to repair the damage caused by death and the cryopreservation process itself. Proponents believe that by preserving the body's structure, it remains a viable candidate for future reanimation and treatment. The process typically involves flushing the body with cryoprotectant solutions to prevent the formation of ice crystals, which can damage cells.

Syväjäädytys is a highly controversial topic, with significant scientific and ethical debate surrounding its feasibility and efficacy. The current scientific consensus is that revival from syväjäädytys is not possible with present technology. Critics point to the irreversible damage caused by the freezing process and the lack of any scientific evidence to support the possibility of future revival. Despite these criticisms, a small number of organizations worldwide offer syväjäädytys services, and a limited number of individuals have undergone the procedure. The practice remains in the realm of speculative science and is not recognized as a medical treatment.