2014.07.27【英译中】Genetics and Addiction 遗传与上瘾(一)

依依要找小太阳 (灯光再亮,也抱住你。) 路人甲
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发表于:2014-07-27 23:09 [只看楼主] [划词开启]

John Crawford has an identical twin. His 16-year-old brother, Keith, is his mirror image. John has brown hair, brown eyes, and a slightly dishonest smile. So does Keith. John weighs about 160 pounds. So does Keith. The brothers walk the same, talk the same---their friends tease them because they even bowl the same.
约翰•克劳福德有个同卵双胞胎兄弟。16岁的基思就是他的翻版。约翰有着棕色头发,棕色眼睛和略带狡黠的笑容。基思也是如此。约翰体重约160磅,基思也一样。两兄弟说话方式一样,走路方式一样——朋友们拿他俩寻乐,因为他们连投球都一样。
The reason, of course, is that identical twins share exactly the same genes. Beyond their physical similarities, the brothers also share less obvious traits. These range from harmless things such as food preferences---they both love hot chilies---to unseen vulnerabilities, such as a risk for heart disease, diabetes, and drug addiction.
原因当然是同卵双胞胎拥有完全相同的基因。除了身体特征的相似,兄弟俩还有些不易发现的特点。这些既包括无害的,如饮食偏好——他们都喜欢吃红辣椒,也包括一些隐患,如患心脏病、糖尿病和药物上瘾的风险。
You’ve probably heard that drug and alcohol abuse runs in families. But what exactly does that mean? John and Keith have a parent who struggles with alcoholism, so are they destined by genetics to face the same fate? The good news is that no single factor determines whether a person will become addicted to drugs. That’s because genetics, biology, and environment all influence a person’s risk for drug addiction.
你可能听说过吸毒和酗酒具有家族遗传性。但这到底意味着什么呢?约翰和基思的父母有一方酗酒成性,那么他们也会因为基因遗传面临相同的命运吗?好消息是单一因素并不能决定一个人是否会药物成瘾。这是因为基因、生物因素、环境都会影响到一个人药物成瘾的风险。


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