吸烟有害健康,更是引起肺癌的罪魁祸首。吸烟人群比不吸烟人群的肺癌发病高10～20倍以上。在吸烟普遍的国家65岁以下男性,因肺癌死亡的病例,90%应归咎于吸烟的结果。欧美各国烟草公司宣传推销香烟的同时,从1964年起已不得不按政府规定,同时在广告上印上"警 Smoking is harmful to health and it is the culprit that causes lung cancer. Smokers are 10 to 20 times more likely to develop lung cancer than non-smokers. In countries where smoking is common in men under 65 years of age, 90% of deaths from lung cancer are due to smoking. While tobacco companies in Europe and the United States have promoted and promoted cigarettes, they have had to stipulate government regulations and have printed “police labels” on advertisements since 1964.