I just have to tell you, I just finished reading about the guy (2 years younger than me) who lost his leg, and the lady who is a couple of years younger than my mother with lung and brain cancer, and the lady who is as old as my youngest aunt struggling with medical expenses and possibly not seeing her daughter through high school because of lung and bone cancer that was deemed incurable, and wow.... The smokes are not worth it...
One thing to say about all of this, if my reading has taught me anything it is that forgetfulness, nausea, mood swings, and the works will happen either way, but we have the power to decide if it is because of withdrawal symptoms, or if it is because of cancer, chemo, heart disease, and the list goes on...