i think he smoked alot and just gave up,,smart in terms of training tho.
^^
I met him at the entrance to Gold's in 1994- I shook his hand, told him I though I'd never get to meet him, etc... He asked me if I smoked (!!!) I said "of course not, who the hell would if you're trying to be healthy"?
He said back "well I love to smoke" and lit up right there outside the entrance.
Absolutely blew my mind...
P.S. 100% true story, never got to meet any pros except Mike Mentzer, Dennis Tinerino, and Boyer Coe.