I wish I had encouraged myself to be more active in my earlier adult years. That being said, I am not sure I would have wanted to be a runner. I am working on fixing that now, but a lot of runners end up having issues with free radicals as well as other factors and they look about twenty years older than they really are. They are probably totally healthy, but they look like old men and women. That's part of the reason antioxidants have become such a huge thing.
oh, forgot to mention how haggard the runners look. It is the same with skiers. I think it isn't the running, but the running/skiing in the sun. The sun shatters youthful looks fast.
I think you are right I did some more research and the sun seems to be a major contributing factor.
Yeah, I am not a runner, but I struggle even walking at a moderate pace. It isn't my fitness, it is literally in my feet. I don't think it would have happened like this had I been able to walk more for that period.
I'm working my way up to being able to run. Right now I can only do about three minutes at a time.