Cryogenics were a fade in the sixties: the idea of freezing a human body for a long time, then "thaw" it later.
If we could not treat an illness, the idea was to freeze that person for as many years as needed, then thaw them in the future, when the treatment for that illness was found.
Never really worked: the freezing process destroys the "quality" of the human cells and killed the patient.
Today, maybe, we could freeze of record your DNA and re-create you in the future. You would be a clone of yourself, but I doubt "it" would be "you".