在西欧和美国,吸烟是引起过早大量死亡的最主要危险因素。死亡的危险性,主要取决于每天吸入的烟草量及吸烟历史的长久。吸烟是引起肺癌的主要原因,并与口腔、咽喉、鼻腔、胰腺、肾及膀胱的恶性肿瘤发生有关。在缺血性心脏病和慢性支气管炎的发病上,吸烟是 In Western Europe and the United States, smoking is the most important risk factor for causing premature large numbers of deaths. The danger of death depends mainly on the amount of tobacco inhaled daily and the long history of smoking. Smoking is the main cause of lung cancer, and with the mouth, throat, nasal cavity, pancreas, kidney and bladder cancer related. In the incidence of ischemic heart disease and chronic bronchitis, smoking is