How Does Cryonics Work?

Cryonics uses temperatures below −130 °C, called cryopreservation, in an attempt to preserve enough brain information to permit the future revival of the cryopreserved person. Cryopreservation may be accomplished by freezing, freezing with cryoprotectant to reduce ice damage, or by vitrification to avoid ice damage.

How is cryogenics operated?

Essentially, cryogenic processing consists of lowering the temperature of the gas stream to approximately −85°C (−120°F). There are several ways to perform this function but the turboexpander process (in which external refrigerants are used to chill the gas stream) is the most effective.

What is the purpose of cryonics?

Cryonics seeks to freeze someone after they have legally died in order to keep their body and mind as undamaged as possible. This aims to buy the patient time until future medical science can bring them back to life, and cure them of whatever it is they died from.