 The leading one by far was cigarette smoking. Cigarette smoking accounts for 20% of the cases and 30% of the deaths. Other risk factors are excess body weight, alcohol consumption, physical activity, and diet. People know how hard it is to stop smoking, right? We all know that. What's easier is never starting to smoke in the first place. We've seen a drop in cigarette smoking in recent years, but it needs to go even further, obviously. And I think the big philosophical point for this