Smoking causes health threats that go beyond serious damage to your lungs. It can also damage your arteries and threaten your heart. One study evaluating the link between coronary heart disease and smoking found that even in young people, smoking was associated with significant heart problems. So kick the sticks to help prevent heart disease, and limit your secondhand smoke exposure, too. If you smoke but want to commit to having a healthy heart, recognize that you may need help beating your addiction. To take charge of your heart health and overall health, explain to your doctor that you want to quit and ask for recommendations on smoking cessation programs. Worried about weight management? Add exercise to your post-smoker lifestyle to stay busy and fit.