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

閱讀難度：

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. （點(diǎn)擊BBC網(wǎng)站查看原文）

吸煙可立即危害身體

?????? 據(jù)英國(guó)廣播公司報(bào)道，美國(guó)最新研究顯示，吸煙對(duì)人體的危害會(huì)在幾分鐘內(nèi)產(chǎn)生而不是數(shù)年。

?????? 吸煙時(shí)香煙中的有害化學(xué)物質(zhì)會(huì)立即引發(fā)癌癥危險(xiǎn)。眾所周知，長(zhǎng)期吸煙可導(dǎo)致心臟病、引發(fā)各類癌癥。但這項(xiàng)研究表明，在抽第一根煙時(shí)，身體就會(huì)受到侵害。

?????? 研究人員試驗(yàn)發(fā)現(xiàn)，12名吸煙患者在吸食香煙時(shí)所產(chǎn)生的化學(xué)物質(zhì)“多環(huán)芳香烴”可致癌。多環(huán)芳香烴類物質(zhì)在進(jìn)入體內(nèi)后，會(huì)誘發(fā)細(xì)胞癌變，而這一過(guò)程僅需15-30分鐘。