I t's a bit strange to think that if either cigarettes or alcohol were brand new products brought up for FDA approval, they would both be rejected resoundingly. Certainly, there are a great many products that are far less harmful that have been given the thumbs-down. As you might guess, I neither smoke nor drink.
Smoking is a no-brainer.
Even so much as one cigarette is harmful to the smoker's health. Everybody who smokes should stop. Nobody who doesn't smoke should start. Drinking is a mixed bag. Alcohol is not a harmful substance unless it is consumed in large quantities.