Aging

I have said for some years now that, while with grandmothers who lived to be 102 and 93, I expect to have many decades ahead of me yet, I plan "only" to run until I'm 90 (increasingly slowly), and then scale back and walk. Now, though, at 52, I'm finding that thought more and more daunting. I still believe it's feasible ... but I need to readjust my expectations of myself, in terms of distance and speed. It's OK for me to allow myself to scale back a bit ... the important thing is just to keep going.