smoking cessation is very important in diabetic patients. This is an avoidable cause of morbidity and mortality. Also most important cause of preventive death in Diabetic patients. Regular smoking reduces life span by 7.5 years on an average. Smoking cessation results in multiple health benefits. That is , risk of heart attack decreases by 50 % in first year, and becomes similiar to nonsmokers in 15 years after quitting smoking. The risk of lung cancer is halved by 10 years after smoking cessation. So it is better to stop smoking if you have Diabetes.