一、吸烟是冠状动脉危险因子追踪观察男女各约４０万例的多因子介入治疗研究（ＭＲＦＩＴ），已得出以下结论：①无论在哪个年龄段，吸烟者的缺血性心脏病的危险度均呈容量依赖性增高；②即使每日吸烟１０支以内也存在危险；③年轻者危险度高，４０～４９岁的男性每日吸２... First, smoking is a coronary risk factor tracking Observed about 400,000 men and women of about 400000 cases of multi-factor interventional research (MRFIT), has drawn the following conclusions: ① regardless of age, smoker’s risk of ischemic heart disease All showed a capacity-dependent increase; ② even if the daily smoking of 10 or less dangerous; ③ young people with high risk, 40 to 49-year-old men suck 2 ...