There hasn't been enough conclusive studies of long term (over 10 years) use of test to know what effect it will have. Maybe it helps you live longer if the dose is low or maybe the body naturally releases less as you get older for certain reasons to prolong life. I think the later is more realistic though...

As for the Clomid and Nolva if your using all year around you don't have to worry about bumping your natural or endogenous test release back up so PCT is not necessary.

-LL