Cryonics is a process of freezing birds, animals and humans and preserving them so that they can be resuscitated at a future point of time.
Nitrogen is used to cool the body and freeze it at a low temperature.
The body is preserved in a compartment in an upside down position in a liquid which keeps the body secure.
As freaky as it may sound why should a person be resuscitated at a future point of time and if he or she has a chance of living, why cannot they do it right now? This is one of the biggest arguments faced by this new form of science.
First of all it is important to understand that cryonics lacks a lot of proof and is still very underdeveloped.
So far there has been no successful case of resuscitation.
The possibility of a cryo-preserved patient coming back to life and leading life normally after that is very bleak and minimal.
What will happen to their memory because brain cells need to be alive for memory to be regained? It is not like a tape where you pause it and then continue whenever you feel like.
Memory works on signals and if the signals do not last, the memory can be erased.
Will the person wake up knowing who he or she is or will they be lost in eternity? Is that what eternal life means? People have to ask themselves these questions and also it is important to understand that cryonics means that a person is neither dead nor alive.