【世界无烟日：别等到肺罢工才想起戒烟】5月31日是世界无烟日。世界卫生组织统计显示，全球每年因吸烟死亡人数超过700万。世界无烟日的设立，正是为了提醒所有人正视烟草的危害，选择更健康的生活方式。别等到走几步路就喘不上气、爬两层楼就得停下来歇一歇，才想起来要戒烟。本期《健康》特别节目邀请上海同济医院徐金富院长，通过真实的呼吸科病例，揭示吸烟是如何一步步损毁肺功能的，以及为什么“戒烟就是最好的治疗”。Your lungs won't warn you before they fail. Smoking steals your breath, slowly and silently. According to the WHO, tobacco kills more than 7 million people annually, including 1.6 million non-smokers from second-hand smoke. World No Tobacco Day exists to wake us up. In this episode of Health Talk, Professor Xu Jinfu from Tongji Hospital of Tongji University uses a real patient case to show why quitting smoking isn't just an option – it's the best treatment. Don't wait until your lungs give out. http://t.cn/AXXhHvOb