I am soooooo glad that I'm not the only 30-something in here!!!
It was put to me this way by a man at least 7 years my junior:
"Don't hate me 'cuz I'm soooo young. See, when you're 50, I'll be 43... And my back will still be good..."
Addendum:
"...and I probably won't need Vitamin "V"..."