Everyone is different. There are people who are unhealthy their wholes lives and when they switch to be healthy at an old age they die. My grandmother smoked cigarettes until she died. She had a lung cancer and when the doctor told her to quit smoking, she said, "I'm going to die anyway." She smoked for another 10 years after that.
RE: Mildred Bowers: 102-year-old woman credits Beer for her long life.