Say CRYONICS works perfectly. I get defrosted and made whole and well. I'm 83. How much longer would I have to live in that body?

Why would I want to come back into that body which is already almost used up anyway unless along with the cryonics they invent longer lives? Make it worth my while?

So I'm defrosed and brought back to fine. How much time do I get? Am I guaranteed a certain amount of years to live before I die again? Inquiring minds want to know these things.