Who says the following statement , regarding smoking and drinking?

Someone who says he’s a doctor was talking at a party to Bob and Sam.
To Bob the drinker, (who says he gets drunk every day, and is sufferring medical condition as a result), ’‘Help your brother Sam (who smokes 1 cigarettes per week if that), to stop smoking ASAP. ’’ but says nothing about Bob’s drinking. And Bob says ’‘What about me?’’ The doctor(or not doctor ) says ’‘You can try to reduce your drinking to 3 glasses of Vodka per day, smoking is what’s worse for health.’’