Stroke, blindness, gum infection, heart disease, and of course cancer. These are only some of the harmful health effects of tobacco use. And despite a half-century of scientific proof that smoking is dangerous to our bodies, and anti-tobacco policies protecting billions of people, we still have a long way to go in the fight against tobacco. In part 1 of a 2-part series, we go in depth on tobacco control and how Bloomberg Philanthropies is working with partners around the world to protect billions of people from the harmful effects of tobacco.