It is not good to stop smoking all at once, especially for long-term smokers and those who smoke a lot, it is best not to stop all at once. Quit smoking at once is easy to appear some symptoms of rebound performance, and even the performance of withdrawal syndrome, such as the emergence of depressed mood, depression, irritability, anxiety, quiet, restlessness and other emotions, there may also be a variety of physical discomfort symptoms, such as uncomfortable, yawning, no energy, easy fatigue, headache, dizziness, nausea, vomiting, panic, etc., if you already have the above If you have the above symptoms, it is best to actively treat them symptomatically. Patients who smoke, especially long-term smokers and heavy smokers, should not quit at once, but should be actively and scientifically treated under the guidance of a psychiatrist or psychiatrist to quit smoking.