She smoked until her heart attack at 62..didn't make it any easier. I had a 44 year old girlfriend taken in 6 months from diagnosis. I think she gave up.
My grandfather also smoked unfiltered Camels for over 50 years until he finally quit. He would smoke them down until he was about to burn his fingers; I used to joke that I was going to buy him a roach clip so that he could smoke the ENTIRE cigarette. Amazingly, he never developed lung cancer (that we know of), and lived to the age of 86, before dying from complications of emphysema and multiple myeloma.