Dude, that doesn't happen. at least not for the better, trust me. the only way people only change is entropy, deterioration. people only get worse, not better. We can prove that by the life cycle. the closest to perfect is when you're an infant, unable to think, decide, harm people, talk, etc. as soon as babies can communicate, in anyway, they immediately form of sense of entitlement, of selfishness. And that selfishness inspires all the declination of the human soul from then on out. And every second, you, I, your child, and everyone else in the world, we're all getting closer to dying. so in short, humans are constantly in a state of deterioration: physical and spiritual, therefore it's impossible for anyone to become "better", at least not permanently. The closest thing to a permanent change for the better would be a better understanding of ones' self, ie "I'm happier because I can relate to myself enough to admit I'm gay and be with the gender I'm attracted to" or "I have the self will and determination to survive without X drug or X alcohol, therefore I will go through the process of leaving them behind (while in my mind, my true determination for this will, ultimately, be discovered as a self-centered "I don't want to die, have withdrawals, or get caught" attitude.)"