My wife had a little girl whilst I was serving as an instructor on a FJ OCU - lots of air combat training too!
As for longevity - this past 12 months there have been 4 funerals of FJ mates (past and present) that have been linked to low mental well-being. Also, quite a few seem to be copping the Big C at the moment as well... So I would suggest that you may need to rethink your hypothesis.
As for myself, when I grow up I'll let you know when I plan to die, but who knows I might be the first to live forwever!
LJ