You're as Young as You Think

Although I once thought that I'd gotten old,
Cause that's what the mirror always fortold,
Each time that I looked, Oh,it was so cold,
But then I thought, no, cause I wasn't sold,
The silly old mirror can only show the outside,
My thoughts and feelings from it life does hide,
You're as young as you feel some people say,
I'm afraid I have to dispute that saying today,
The mirror's deduction, well it just got zapped,
For you see I'm just a young man trapped,
Forever in this worn out old body, hence,
I don't feel very young in a physical sense,
But I think in my mind my youth is immense,
Maybe my body's slow as a clogged up sink,
But I've got to say you're as young as you think,
And I can tell you my minds health's in the pink.