Smokers 1 double the risk of contracting heart disease, several times the risk of 2 from chronic bronchitis and at least 25 times the risk of lung cancer, as compared to non-smokers. Despite extensive press campaigns, which have regularly told smokers and car drivers about the dangers of smoking, the number of smokers has 3 much the same. Although the number of deaths from road 4 and smoking are well publicized, they have 5 little public interest.