Cryogenic preservation. Computer artwork of a man in a cryogenic pod. His body is being preserved by storing it at very low temperatures. This could be a form of suspended animation for long-range space travel to the stars, or it could be to preserve a dead or diseased body. This would be based on the hope that future medical technology might be able to resurrect the dead, cure diseases that couldn't be treated in the past, or restore recorded brain patterns to a dead body. Some companies offer to store dead people's bodies, though the legality of this is often disputed.