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吸烟对人体健康有害,对飞行来说影响就更大。香烟中含有焦油、酚类、醇类、酸类、醛类等多种有害物质。特别是烟中的尼古丁可刺激血管,引起持续性血管痉挛,使血液流通受阻,周围血流量减久;还可使心跳加快,血压升高,可增加血液中游离的脂肪酸和胆固醇,降低对心血管具有保护作用的高密度脂蛋白含量。据调查,吸烟者与不吸烟者冠心病的发病比为2:1到4:1。长期吸烟,还可引起慢性阻塞性肺部疾患肺
Smoking is harmful to human health and has a greater impact on flight. Cigarettes contain tar, phenols, alcohols, acids, aldehydes and other harmful substances. In particular nicotine in the smoke can stimulate blood vessels, causing persistent vasospasm, blood circulation blocked, reducing blood flow around the body; also make rapid heartbeat, high blood pressure, can increase the free fatty acids and cholesterol in the blood and reduce heart Vascular protective effect of high-density lipoprotein content. According to the survey, smoker and non-smoker coronary heart disease incidence ratio of 2: 1 to 4: 1. Long-term smoking can also cause chronic obstructive pulmonary disease in the lungs