There is a saying that habit becomes nature, and the smell of smoke has entered the heart, so it is difficult to quit. Every box of cigarettes knows that smoking is harmful to health, and almost 90% people know that this is not the case. In addition to nicotine and other ingredients in cigarettes, it is also related to a person's consciousness and persistence. People may be able to keep smoking with that addiction, but it is difficult to quit smoking persistently.