Welp, I've been confused about how to calculate hibernater's age now...

Maybe the key question is: Should the hibernation time be included into the age? And does body function change during hibernation?

In the sci-fi The Three-Body Problem,  it should not be included into the age and the body won't be impaired,  and even some serious diseases can be cured in that way. 

Besides the novel,  if Hibernation was realized in the real life, you wouldn't think a hibernater older and there's no need for that.