Is age just a number?

Is age just a number?
I love to people watch because they fascinate me. I enjoy watching the interactions, and I am always interested in the stories of how people became who they are, and why they act the way they do whether that shows them at their best or on a bad day. One thing that disappoints me though is when I see someone who is allowing inactivity to age them too early or damage their health, or someone who is giving…