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病众所周知,吸烟有害健康。以往的流行学研究表科明,至少17种癌症的发生都与吸烟有关。如今,学的家首次从分子层面量化了吸烟对人体DNA影响。和1000名美国科学家通过对比来自2500名吸烟者突非吸烟者的肿瘤细胞DNA数据,得出了吸烟与DNA言变的关系。他们的研究显示:平均而,每吸50支烟续就会为每个肺细胞带来一个DNA突变;对于连一年每天吸20支烟的人来说,他的每个肺细胞、喉部细胞、咽部细胞、膀胱细胞和肾脏细胞将会分别产生150个、97个、39个、18个和6个DNA突变。
It is well known that smoking is harmful to your health. Previous epidemiological study table Ming, at least 17 kinds of cancer are related to smoking. Nowadays, for the first time, scholars at home have quantified the effect of smoking on human DNA at the molecular level. And 1000 American scientists compared tumor DNA data from 2,500 smokers with non-smokers and found the relationship between smoking and DNA degeneration. Their research shows that, on average, each lung cell undergoes a DNA mutation with 50 cigarettes per inhalation, and for every 20 people who smoke 20 cigarettes a day a year, each of his lung cells, his throat Cells, pharyngeal cells, bladder cells, and kidney cells will produce 150, 97, 39, 18, and 6 DNA mutations, respectively.