Cryonism, also known as cryonics, is the practice of preserving individuals at very low temperatures after legal death, with the hope that future medical advancements may allow for their revival and treatment of their conditions. The process involves cooling the body to halt cellular decay and often includes replacing bodily fluids with cryoprotectants to prevent ice formation. While cryonics is a controversial and largely unproven field, it attracts interest from those seeking to extend life beyond current medical capabilities. The scientific community remains skeptical about the feasibility of successful revival.