剧情介绍:
香【xiāng】烟【yān】中【zhōng】含【hán】60多【duō】种【zhǒng】致【zhì】癌【ái】物,其【qí】中苯【běn】并芘【pí】可【kě】直【zhí】接【jiē】损【sǔn】伤DNA,导【dǎo】致【zhì】基因【yīn】突【tū】变【biàn】;吸【xī】烟【yān】还【hái】会【huì】抑【yì】制【zhì】免【miǎn】疫【yì】细胞【bāo】活【huó】性(如【rú】降【jiàng】低T细【xì】胞【bāo】增【zēng】殖【zhí】能【néng】力【lì】),使癌【ái】细胞【bāo】更【gèng】易【yì】逃【táo】避免疫【yì】监【jiān】视【shì】。