Thanks so much for this great read. At 51, I'm just getting into a true training regime (and trying to keep up with my 28 year old daughter!) and it's changing the way I feel about aging and what my body can do. I had gotten caught up in the "well, I'm on the down-slope now" when I turned 50, but I'm learning it doesn't have to be that way. The more I try, the easier it becomes. Your articles on fitness and aging are always so inspiring and I appreciate reading them while on this journey.