人们很重视吸烟对肺—支气管的损害,尤其害怕肺癌,而对吸烟所致心血管的危害则认识不足。估计美国每年有352,000人过早的死亡与吸烟有关。65岁以下死于缺血性心脏病者不少与吸烟关系密切。美国每年有250,000冠心病患者死亡与吸烟有害影响有关。大量研究证实吸烟可能是缺血性心脏病的主要的、可以改变的危险因素,但如果吸烟与高血压,高胆固醇血症并存,危险性就更大。有人在30～59岁人群中作了调查,血压正常、胆固醇不高, People attach great importance to lung damage of lung - bronchus, especially afraid of lung cancer, while the cardiovascular harm caused by smoking is not fully understood. It is estimated that 352,000 premature deaths each year in the United States are related to smoking. Many people under the age of 65 who die of ischemic heart disease are closely related to smoking. Every year 250,000 coronary heart disease deaths in the United States are associated with the harmful effects of smoking. Numerous studies have confirmed that smoking may be the main risk factor for ischemic heart disease can be changed, but if smoking and hypertension, hypercholesterolemia coexist, the risk is even greater. Someone in the 30 to 59-year-old crowd made a survey, normal blood pressure, cholesterol is not high,