My father used to smoke too. It's been more than 20 years since he quit but now at age 56, his health is like that of 70+ now. Due to COPD, he needs oxygen everywhere he goes. His own life and the life of people around him has highly degraded. He regrets smoking very much & I myself am trying to quit but still cant live without smoking, can we? Well, I have cut down from 1 pack per day to 2-3 cigarettes.