Suspended Animation

Suspended animation is the process in which individuals slow down vital functions in living beings with low temperatures, stasis tanks or other methods for the purposes of preserving them and keeping them alive for extended periods of time.

Cryo-technology
Before the Great War, companies and government agencies produced cryo-technology. The Massachusetts Surgical Journal titled an issue "Cryo-Technology: Haven or Tomb?"

Vault 96 cryo pods
Vault 96 cryo pods were designed to hold animal subjects using helium. There were 86 Cryogenics Bays in the Vault.

Before the Great War, housed approximately 10,000 species in cryonic bays, such as beavers.

Hybernation Chambers
Big MT produced hibernation chambers.

Appearances
Suspended animation technology appears in Fallout 2, Fallout Tactics, Fallout 3, Fallout: New Vegas, Fallout 4, and Fallout 76.