The exercise answer is really tiring. It became a universal remedy
If we analyze what OP is saying we can rapidly see what he wants.
Essentially he wants a long life where he gets to delay death as much as possible, live to 100 as a very rich person so he'd avoid missing out on things , stress free, and with the minimum amount of personal tragedies.
All the amount of exercise in the world won't magically summon all the luck that it's necessary to be in the 0.000000001% who can claim to be fortunate enough to satisfy all the requirements set by OP.
When the brain wants all the above and you throw at it a 20mi run...well let's say that if the brain was a person it'd look back at you and say something like :
"Do I look like an idiot? Give me what I want , not this BS run or else I'm gonna make you miserable and no amount of running will change that"