Don’t know , might not help . I have been told that it is healthier to be happy .I'm still up in the air about that. For sure I'll let a bunch of guinea pigs step up first, but I expect that choice will be be made for me as my "turn" is not going to come up for a bit. I'm in my sixties but not in any huge risk group. At least I don't think so, does a chronic bad attitude put you at risk?