It happens. And it happens a whole lot faster than you wish it to happen. When you turn 64 you're gonna look back and wonder how you got that old so fast. So hang to your youth as long as you can. Enjoy the crap out of it, 'cause if you don't then when you're my age you'll be yelling at kids to get off your lawn. I had way too much fun when I was young to even think about yelling that.