I'm just jealous, if I do anything at all I walk 2 or 3 km around the lake here, at 76 running seems to me to be an exaggeration. I'm actually quite fit and slim and will climb on the roof to clear rain gutters, cut the grass etc, play with grand kids but there has to be a reason for my activities, the lure of a computer and air con are hard to resist. My brother is a keep fit fanatic at 70, mountain bike and sailing, 6 months ago he broke his neck biking but survived, my father did a lot of sailing and heavy gardening, his third heart attack killed him. At my age I see no point in being the fittest corpse in the crematorium. One has to enjoy what one does, if running is your thing go for it, my earlier post was tongue in cheek, no offense intended.