I've never been into running. Got terrible side aches when I was a kid, and refused to participate when the gym teachers in Los Angeles told our class to run all period. Smog was so thick it burned your eyes and your lungs, and I figured it was just a bad idea to run in that muck. Told them that, we compromised, I walked instead.

Walking has always been a pleasure for me, and walking off-trail, in a forest, has always been my favorite place to do that. Personally, I think it's probably one of the best things you can do to stay healthy.