He smoked for about 40 years. You're probably thinking that if it takes 40 years I'll be fine. I'll smoke now and quit later. It's not that easy. After one cigarette you can be addicted.
Cigarettes can cause tongue cancer, mouth cancer, throat cancer, lung cancer, emphysema, etc.
If so choose one because if you smoke while you play a sport you get out of breath, tire quickly, your overall ability starts to fail, all because of a couple of cigarettes. You can buy a used car, a big screen t.v., dogs, or go on a vacation. Second hand smoke is worse for you and others because when a smoker smokes what he or she is taking in is filtered. When a person that is in the same room takes in smoke they are not getting the unfiltered smoke but are also getting bad things that are in the air. Well, the answer is because the nicotine lies on things.