There is to this day constant speculation whether or not Maria Callas's vocal decline was due to her weight loss. She liked to point out that her greatest recordings were made when she was skinny, her word. Why is it that no one proposes that her vocal decline and premature death were due to lung damage brought on by SMOKING?
Just so you are not too shocked, here is Renata Tibaldi, Callas's great contemporary and rival, smoking. I can't tell if Mario Del Monaco is also smoking, but there is something that might be a wisp of smoke in the upper right. In the old days everyone smoked.
And why is it never proposed that Enrico Caruso died because of smoking?