There are many effect to smoking .First,smoking damage to the health of the body as we age shorter and causes various kinds. Such as lung cancer is a disease of smoking contain carcinogens,heart disease from toxic chemicals in smoking can cause abnormal blood lipid levels and paralysis from coronary heart disease and toxins in cigarettes that causes blood vessels in the brain. If blood vessels in the brain to cause paralyze. Second,smoking is harmful to smokers themselves, but also dangerous to those around them. If a pregnant woman has been smoking will gain less weight than normal. Including a miscarriage and premature birth. It also affects fetal brain can cause delayed neurological disorders and memory. Finaly,the cost of smoking. People must be free to make unnecessary and harmful to the smokers instead used his money to good use.