The secret to getting older is living life

Quite often, people tell me I don’t look my age. I’m not certain if they believe I look older than my years or younger. Whatever, I soon reveal I’m proud I made it this far.
I’m asked, how did I live this long, or, what is my secret. I wish I knew, but I have no secret or idea. I could say it is the clean life I’ve led or the calm atmosphere, never getting excited, no alcohol, no smoking, not chasing so many girls etc. But there wouldn’t be any truth to that . . .