Cryonics Institute is an American Non Profit Foundation that provides cryonics services. CI freezes dead humans and pets in liquid nitrogen with the speculative hope of restoring them with technology in the future.

How long has cryonics been around?

History. Cryopreservation was applied to human cells beginning in 1954 with frozen sperm, which was thawed and used to inseminate three women. The freezing of humans was first scientifically proposed by Michigan professor Robert Ettinger when he wrote The Prospect of Immortality (1962).

Where did the idea of cryonics come from?

The idea that a person could be frozen and then brought back to life when the technology had evolved far enough originated with the book "The Prospect of Immortality," written by physics teacher Robert Ettinger in 1964. The word "cryonics" is derived from the Greek term for "cold."