I started cycling again later in life. I feel younger in the respect I feel fitter.
I also host cyclists on Warmshowers, to give something back to touring cyclists.
Recently I had a round the world cyclist stay with me for a while. He's been going for five years so far. He's in his 20's and I'm 62. All the locals here though we were father and son. Later on, whenever people asked we said we were. It was quite funny.
We ended up touring around north-east Thailand together - 800km in a week, which I never imagined I'd be doing at 62. So yes, I do feel younger!