Most people understand cryonics to be the freezing of bodies after death, and they're mostly correct. Cryopreservation stores biological material at an incredibly low temperature for use at a later date. The main goal of cryonics is to preserve brain functions before it's undergone irreversible damage in the hopes that technological advancements will be able to revive it in the future. This requires quick action once the heart has stopped, not to mention a relatively…