I have always loved the quote, "It's not if you are going to age, but HOW you're going to age". It is a truth that all of us have no choice to live by, but some choose to simply ignore. We cannot escape the fact that we all, right now, at this very moment, are getting older. Instead of trying to runaway from this fact, we should embrace it. The lines on our face and the white in our hair should tell a story of great trial and triumph. It should speak to the fact that we lived this life to its fullest... and not lived just for ourselves. At the end of the day we take nothing with us and leave only the good (or bad) deeds we did.
Make sure you pay attention to "HOW" you live your life and not just that you live it.