来自布里斯托尔大学的教授伊恩?盆顿-沃克是这项研究的合著者,他说:“我们假设吸烟会损害皮肤和外貌,然后采用了这个很巧妙的方法,因为双胞胎的基因是相同的,所以与衰老相关的遗传因素就会被我们控制。外貌对人们,尤其是对年轻人来说似乎很重要,所以我们可以利用这个发现作为未来干预措施的基础,以此来阻止人们吸烟。”
Smoking can speed up the normal ageing, even after only a decade. Nicotine causes narrowing of the blood vessels in the outermost layers of the skin, while the chemicals in tobacco smoke damage collagen and elastin, fibres which give the skin its elasticity.
吸烟会加快人们正常衰老的速度,即使只有十年(效果也会很明显)。尼古丁会导致皮肤最外层的血管收缩,而烟雾中的化学物质会损害那些赋予肌肤弹性的胶原蛋白和弹力蛋白。
The wrinkles this causes are added to by facial expressions made when smoking — such as pursing the lips when inhaling or squinting to keep smoke out of your eyes.
吸烟时的面部表情也会使皱纹增加——比如,吸入时会把嘴唇缩拢或者为了防止烟雾进眼睛而把眼睛眯起来。
To test if smokers did look worse, the researchers asked more than 500 people to pick the smoker and non-smoker from 23 sets of twins. After finding smokers were easily identified, they created prototype pictures to make sure the twins’ facial expressions or poses could not alter the results. Using these images, tweaked by a computer to standardise how smokers and non-smokers looked, they asked which people found ‘more attractive’.
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