Quitting smoking all at once may result in a nicotine withdrawal reaction, uncomfortable symptoms in the body and adverse effects on the mind and body. Smoking cessation can take attention diversion method, diet therapy and improve willpower. The details are as follows: Tobacco contains a large number of harmful substances, such as nicotine, carbon monoxide, acetone, aluminum, etc., frequent smoking will be addictive, dizziness, palpitations and other symptoms, the oral cavity, liver, kidneys, teeth are damaged, in order to be healthy should quit smoking as soon as possible, in order to avoid the sudden cessation of smoking lead to physical discomfort, it is particularly important to choose the appropriate way to quit smoking. 1. Attention diversion method: When you want to smoke, you can choose your favorite sports or do what you like to do, such as flower arrangement, baking, pottery, etc. to divert your attention. 2. Diet therapy: Eat more refreshing food, such as apples, horseshoes, ginseng fruit and other fruits with high water content, but also appropriate supplementation of high-quality proteins, such as milk, eggs, lean meat, can enhance physical fitness and improve immunity. 3. Improve willpower: Quitting smoking is a long-lasting process. Before quitting smoking, you should understand the discomfort that will occur when quitting smoking, such as mouth ulcers, drowsiness, coughing, etc., and accept these discomforts from the heart, as well as record the diary of quitting smoking and carry out the practice of positive thinking, to positively find out the process of change for the better, and to overcome the difficulties. In addition, it is recommended to visit a smoking cessation specialist clinic, where a professional physician will choose the appropriate smoking cessation program according to the patient’s condition.