My Dad smoked a pipe until he was seventy:
"You know why I smoke Erinmore tobacco? It's the strongest I can find; if I could find something stronger, I'd smoke that."
He lived to 94. And even then, I think he just "gave up the ghost", as they say, because he was both blind and deaf ("This is no way to live.")
Mom made it to 94 as well. They drank coffee every morning and tea every night. So do I. Very "scientific" of me, eh?