I think it's your mental attitude. So many of us start dreading age in high school and that's a waste of a lovely life. 'Oh... I'm 30 oh I'm 40 oh 50.' Make the most of it.
Wrinkles should merely indicate where smiles have been.
Anyone who stops learning is old whether at twenty or eighty. Anyone who...
Age is an issue of mind over matter. If you don't mind it doesn't matter.