Even if we resist or avoid change , it will enter our life just the same. When we initiate the change ourselves, it’s pretty easy to adopt to it, since it’s a wanted one. "Your life does not get better by chance, it gets better by change.
I'm by no means a runner - I have avoided it like the plague in most cases. But occasionally I feel like running just because I can. There will come a day when this body just can't do the things it used to. Live life while you are able to.