Tobacco use is the number one public health problem in the contemporary world and has constituted the greatest threat to human health, and tobacco dependence and tobacco-related diseases have become a social problem that seriously endangers the health of the population (1). China is the world’s largest tobacco victim and consumer, the results of a survey in 2002 showed that: the smoking rate of our population is 35.8%, of which 66.0% for men and 3.08% for women (2). The fact that doctors smoke is even more surprising in itself. As doctors working in the front line of clinical practice, they are supposed to be the most aware of the dangers of smoking and the least likely to smoke. Yet in China, the proportion of doctors who smoke is not much lower than that of the general population. According to a 2004 survey involving six cities (Harbin, Tianjin, Lanzhou, Chengdu, Wuhan, and Guangzhou) [2], as many as 22.9% of physicians were smoking, with male physicians at 40.7% and female physicians at 1%, a figure slightly lower than the 63.0% (men) and 3.8% (women) of the general population, but still quite alarming. According to another survey, although about 30% of smokers had the intention to quit, the success rate of natural cessation was only about 3.5%, and even included a certain percentage of relapse. Doctors who have been working in smoking cessation clinics for a long time have a common experience: it is difficult to quit smoking, and it is even more difficult to quit smoking treatment. For those smokers whose bodies have not been significantly harmed by tobacco, or who are physicians themselves, it is even more difficult to persuade them to quit. If quitting is not possible, tobacco control is also beneficial in avoiding tobacco damage to people’s health. Therefore, it is imperative that tobacco control counseling be provided in cessation clinic practices. We advocate that smokers who do not want to quit for the time being or who cannot quit successfully maintain a healthy smoking style, change harmful smoking practices, or abandon bad habits. Several effective methods of tobacco control are outlined below: Avoid early morning smoking. Generally speaking, the early morning hours of vascular endothelial function is in an unstable state, when the level of nicotine in the blood drops to a minimum, smoking immediately upon awakening blood nicotine levels suddenly rise, a large number of nicotine receptors are suddenly activated easy to cause coronary artery or cerebral artery spasm, causing cardiovascular and cerebrovascular events, manifested as dizziness, chest tightness, nausea and other symptoms after smoking. Therefore, try not to smoke between the time you wake up in the morning and before meals. For patients with cardiovascular disease, it is recommended that they do not smoke before ten o’clock in the morning. Avoid smoking on an empty stomach. When smoking, a large amount of tar and nearly 1,000 kinds of harmful substances flow into the stomach with saliva, and these harmful substances are absorbed into the blood in the gastrointestinal tract and need to be detoxified by the liver. When fasting, a large amount of tar and harmful substances are absorbed directly into the blood in the stomach, which directly stimulates the gastric mucosa on the one hand, and increases the speed of harmful materials into the blood on the other. Avoid smoking too often. The amount of smoking and the control of the frequency of smoking are of equal importance. Generally speaking, the minimum control standard is 15 cigarettes per day, but the frequency of smoking should also be concerned. Generally, the frequency of artificial smoking should be limited to one and a half hours or more. Some experimental studies have confirmed that smoking-induced sympathetic activation can last 40-50 minutes. In hypertensive patients, blood pressure rises by 5-8 mmHg after smoking and gradually begins to fall after about 20 minutes. Excessive smoking is likely to trigger cardiovascular disease attacks. The ideal standard is to limit smoking to 5 cigarettes per day. Avoid inhaling secondhand smoke at the same time. It is common for smokers to inhale secondhand smoke while smoking a firsthand cigarette. This is most often seen when multiple people smoke at the same time in a room with little air circulation, or when a person smokes while squatting in a bathroom with little space and no air circulation. Do not smoke when you are unwell or in a bad mood. Middle-aged people who experience dizziness and chest tightness should not smoke. If you do smoke, you should pay special attention to controlling the intensity of smoking and not to inhale too deeply or to the butt of the cigarette. If you experience chest tightness, chest pain, panic, headache, dizziness, numbness, or shortness of breath while smoking, you should stop smoking immediately. Avoid inhaling cigarettes with high tar content and high nicotine content. According to the Chinese State Tobacco Monopoly Administration issued “on the adjustment of cigarette tar limit requirements,” the provisions of July 1, 2004 and after the production of the box label tar amount standard higher than 15mg / cigarette shall not continue to sell in the domestic market! The European Union stipulates that the maximum tar content shall not exceed 1Omg, the maximum nicotine content shall not exceed 1mg, and the maximum carbon monoxide content shall not exceed l0mg, while Japan stipulates that only 12mg of cigarettes can be sold. Japan’s Ministry of Health, Labor and Welfare research team to about 100 smokers between the ages of 20 and 65 as the object of the survey, based on the tar content of the cigarette packets they smoked will be divided into four groups: the first group often smoked cigarettes with a tar content of 1 mg per cigarette, the second group smoked cigarettes with a tar content of 3 to 6 mg per cigarette, the third group of 8 to 10 mg, the fourth group of 14 mg. But the researchers analyzed various data and found that although the first group of respondents smoked cigarettes with tar content of about 7% of the fourth group, but they only reduced the nicotine content per milliliter of saliva to about one-third of the fourth group. And regardless of the amount of tar and nicotine content in the smoked cigarettes, the amount of carbon monoxide inhaled from cigarette smoke was almost equal in all survey subjects, and excessive long-term inhalation of carbon monoxide is one of the important causes of atherosclerosis. Researchers said that smokers must realize that low tar and low nicotine does not mean that smoking is less harmful to health. Because the inhalation of low-tar, low-nicotine cigarettes will correspondingly increase the number of smokers. In short, changing unhealthy smoking practices can help smokers reduce the health risks of cigarettes. For patients who cannot quit smoking, tobacco control treatment is equally effective.