Smoking is an independent risk factor for heart diseases. It increases blood pressure, heart rate, irregular heart beats and platelet stickiness. The risk is directly proportional to the number of cigarettes one consumes. It also depends on the duration for which one has been smoking. The risk decreases when one stops smoking (this is applicable even after an attack).
Those who want to quit smoking, require moral and emotional support from family members and society. Nasal nicotine spray and nicotine gum can help in quitting smoking.