Cryostasis is a process that involves preserving a living organism at extremely low temperatures to halt biological activity and decay. This technique is often associated with the idea of freezing individuals, such as humans or animals, in hopes of reviving them in the future when medical technology has advanced. The preservation is achieved using cryoprotectants to prevent ice formation, which can damage cells. The concept of cryostasis is popular in science fiction, often depicted in movies and literature. While real-life applications are limited, some organizations, like Alcor Life Extension Foundation, offer cryopreservation services for individuals who choose to be frozen after death, aiming for potential revival in the future.