Yes. They did. But people didn't listen, often because their docs were fat and smoked and died young. Still do. My mother's obgyn, Willy Steele, was a chain smoker. I went to see him at 19, a fellow chain smoker. He told he I could never quit. BOY did that piss me off. Next day I dumped my cartons and started running, that after a five pack a day habit. Never smoked again. Asshole.