Tobacco advertising also has a big influence on why people smoke. For years, the industry has focused on making smoking glamorous through advertising in movies, television, and billboards. While cigarette advertising is now controlled, its influence can still be felt in the form of free samples, smoking cartoons, and the promise of cool merchandise that can be obtained in exchange for coupons printed on cigarette packs. Many people claim that smoking keeps them thin, but the truth is that smoking reduces the sense of taste, so many people who smoke simply eat less because they don't enjoy food as much.