Because nicotine doesn't kill you, the way it is delivered does. Tobacco products are the most popular delivery method and is especially harmful due to level of

Because nicotine doesn't kill you, the way it is delivered does. Tobacco products are the most popular delivery method and is especially harmful due to level of carcinogens and other elements. Essentially no one cared much about nicotine as a chemical specifically much more than they did about caffeine.