American researchers claim in a new study that smoking damages the body in minutes rather than years.

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American researchers claim in a new study that smoking damages the body in minutes rather than years, BBC reported.

The report shows chemicals that cause cancer form rapidly after smoking. The long-term impact of smoking, from heart disease to a range of cancers, is well known. This study suggests the damage begins just moments after the first cigarette is smoked.

The researchers looked at the level of chemicals linked with cancer, polycyclic aromatic hydrocarbons (PAH), in 12 patients after smoking. A PAH was added to the subject's cigarettes, which was then modified by the body and turned into another chemical that damages DNA and has been linked with cancer. The research shows this process only took between 15 and 30 minutes to take place. （点击BBC网站查看原文）

吸烟可立即危害身体

       据英国广播公司报道，美国最新研究显示，吸烟对人体的危害会在几分钟内产生而不是数年。

       吸烟时香烟中的有害化学物质会立即引发癌症危险。众所周知，长期吸烟可导致心脏病、引发各类癌症。但这项研究表明，在抽第一根烟时，身体就会受到侵害。

       研究人员试验发现，12名吸烟患者在吸食香烟时所产生的化学物质“多环芳香烃”可致癌。多环芳香烃类物质在进入体内后，会诱发细胞癌变，而这一过程仅需15-30分钟。