I'm still not convinced I'm going to live long enough to worry about aging. No one I knew when I was young thought we were going to live to see 40. We walked around in wonderment when the year 2000 rolled around. Now that I'm 50 and had that health scare a couple of years ago, I think I'm comfortable with my own mortality. It's easy to say "we're all going to die," it's harder to say "I'm going to die," but I'm there and I think I'm okay with it. I do wish I had a better sense of how acceptance looks different from denial, though.

I will paraphrase something I said on my Facebook page the other day though: I have to do intervals just to maintain, now; I liked it better when it was "speedwork."