What is the effect of smoking?
Hardening of arteries and organs, cancer, emphysema, death, second hand smoke kills just as many people, birth defects from second hand smoke. Your kids are more likely to be sickly in a smokers home poisoning of the the earth.
Instantanious death,, lol jk well theres heart problems,, you get slower and harder to breath and super lazy umm lets see theres that wonderful thing of addiction and it does cut your life shorter. Well thats all I can think of.