The main component of moxa smoke is mugwort, and no matter which kind of tobacco is burned, there are carcinogenic substances in the smoke, especially nicotine. Therefore, whether it is cigarettes or mugwort, prolonged smoking can increase the chance of lung cancer. In addition, we should pay attention to passive smoking, especially family members or spouses smoke for a long time, although they do not smoke, long-term exposure to passive smoking can also cause second-hand smoke hazards. Therefore, no matter it is cigarettes or mugwort, no matter it is active smoking or passive smoking, they are all high risk factors for lung cancer, so we are advised not to smoke as much as possible, no matter what kind of smoke. Pay attention to your own health and safety, as well as the health and safety of your family and others around you.