"What about the cryogenics guys?"

Cryonics Institute
GNU Free Documentation LicenseCryonics Institute - Credit: Ben Best
 Cryonics is the use of low temperatures to preserve humans or animals for resuscitation in the future. Cryopreservation is most popular amongst wealthy people with currently incurable conditions.  The technology to reverse the cryopreservation process is not yet available.

American Cryonics Society

Cryogenics is the study of very low temperatures and the how they affect materials.