At what point in your life did you realize that you’re probably never going to be as healthy/attractive/happy/etc. as you once were? Did you have the presence of mind to realize it at the time? Or have you somehow avoided this altogether (i.e. you’re under 30)?
I had my doubts at 30, but now I’m pretty sure I’m officially on the decline. Nothing drastic, but it’s like when you realize your new car isn’t a new car anymore. Except you can’t save up for a new one, or even take out a foolish auto loan.