Health span is not defined by the absence of chronic disease, and a definition based on being free of disability and disease is unhelpful because it is binary.

“the other point in this question you ask was what is the was Health span my own personal answer to that is it's a useless term that is because no one can Define it it's not because no one is smart it's because the term itself is vacuous and nebulous”

“the other point in this question you asked was what is the is Health span my own personal answer to that is it's a useless term that is because no one can Define it it's not because no one is smart it's because the term itself is vacuous and nebulous if you have somebody that gets a certain chronic disease here and then another one and then they fall down and bump their head and by the way they go to the hospital and with Co etc etc defining when in that broad over that 20 to 30 year period they flicked the switch now they have gotten to the end of the health spin is impossible and of no interest”

“I would not Define health span as ending once you have your first chronic disease but that's the definition most people would use if you use that definition most people are spending three decades or more in the absence of Health span my own personal answer to that is it's a useless term that is because no one can Define it I don't like the medical definition of Health span which I believe is quote the period of time in which an individual is free of disability and disease I find that to be a very unhelpful definition yeah part of the reason it's awful is it's binary”