I have to imagine it is these guys cranking out tons of extra days for years ahead of retirement. I don't know why it is yet, that isn't my "season of life" (as my wife would say), but I do know I have flown with an outsized number of older CA's who work a ton of extra days a month and still do crap like redeyes (hence us being together in the first place). Maybe it is to pay the bills. I tend to think that it is more likely that they have nothing better to be doing, because the isolation of this job has taken away their social network/loved ones/etc. Which in of itself could probably result in early death. I do buy the hypothesis that losing a purpose for getting up each morning probably affects you. My old man is in his mid 80's, and I am pretty sure that the only reason he isn't senile at this point is because he volunteers for all kinds of things.......police, church, EAA chapter, etc. I don't think the answer is to just work until you are dead, but I don't think retiring into a life without purpose is a recipe for survival.