Continuous smoking for 40 years fifteen cigarettes a day should quit smoking in time to avoid increasing the incidence of chronic bronchitis, lung cancer and other diseases. Smoking cessation can be achieved through self-control, distraction and medication. 1. Self-control: Quitters can halve the number of cigarettes smoked per day at first, step by step until it reaches zero. This will try to avoid withdrawal reactions, create a good environment for yourself, tell people around you that you are quitting, and refuse cigarettes from others. 2. Divert your attention:Cultivate some hobbies, such as sports, fishing and so on. When you want to smoke, you can distract yourself by exercising to reduce the dependence on cigarettes. You can also chew gum instead of cigarettes. 3. Medication: You can go to a smoking cessation clinic set up in a hospital to seek help from a doctor. Doctors will formulate a plan according to the situation of each person who wants to quit smoking, and you can use nicotine chewing gum and nicotine patches under the guidance of the doctor to carry out the treatment. Smoking is harmful to your health, and you should seek medical attention if you become unwell from smoking.