研究称减肥可能会污染血液

　　According to the Newscientist of September 7, weight loss has a serious downside: it leads to the release of persistent¹ organic pollutants² (POPs)， which may have a significant impact on health。

　　POPs are man-made chemicals which enter the food chain from sources including pesticides³ and manufacturing. They have been linked to an increased risk of diabetes⁴, cancer and dementia。

　　Once consumed, POPs collect in fatty tissue, where they are not thought to be harmful. Now, Duk-Hee Lee of Kyungpook National University in Daegu, South Korea, has shown that weight loss causes POPs to be freed, leading to their build up in the blood。

　　Lee compared weight changes in 1100 adults over 10 years with seven POPs in their blood. People who had lost 10 kilograms or more during the decade had the highest levels of blood-borne POPs, while those who gained 10 kilograms or more had the lowest。

　　The level of POPs needed to have an adverse⁵ affect in humans is unknown, so it should not stop obese⁶ people trying to lose weight, said Amanda Sainsbury-Salis at the Garvan Institute of Medical Research in Sydney, Australia。

　　据英国《新科学家》杂志网站9月7日报道，减肥有一个严重的副作用：它可导致人体内释放持久性有机污染物(POP)，这可能会严重影响人的身体健康。

　　持久性有机物污染物(POP)是人造的化学品，来源于杀虫剂和制造行业等，进入食物链后可能会增加患糖尿病、癌症和痴呆等疾病的危险。

　　人体内的POP聚集在脂肪组织中，本来是没有危害的，但如今位于韩国大邱的庆北大学的李德熙(音)指出，减肥可能会使POP得到释放，进而导致其在血液中积聚起来。

　　李在10年的研究中把1100名成人体重的变化进行了比较。在10年中体重降低10千克以上的人血液中的POP含量最高，而那些体重增长10千克以上的人血液中的POP含量最低。

　　来自澳大利亚悉尼的加文医学研究所的阿曼达？塞恩斯伯里？萨利斯表示，目前还不清楚血液中含有多少POP会对人体造成危害，因此减肥者不应因此而放弃减肥。

1 persistent   

adj.坚持不懈的，执意的；持续的

参考例句：

• Albert had a persistent headache that lasted for three days.艾伯特连续头痛了三天。
• She felt embarrassed by his persistent attentions.他不时地向她大献殷勤，使她很难为情。

2 pollutants   

污染物质（尤指工业废物）( pollutant的名词复数 )

参考例句：

• Pollutants are constantly being released into the atmosphere. 污染物质正在不断地被排放到大气中去。
• The 1987 Amendments limit 301(g) discharges to a few well-studied nonconventional pollutants. 1987年的修正案把第301条（g）的普通排放限制施加在一些认真研究过的几种非常规污染物上。 来自英汉非文学 - 环境法 - 环境法

3 pesticides   

n.杀虫剂( pesticide的名词复数 )；除害药物

参考例句：

• vegetables grown without the use of pesticides 未用杀虫剂种植的蔬菜
• There is a lot of concern over the amount of herbicides and pesticides used in farming. 人们对农业上灭草剂和杀虫剂的用量非常担忧。 来自《简明英汉词典》

4 diabetes   

n.糖尿病

参考例句：

• In case of diabetes, physicians advise against the use of sugar.对于糖尿病患者，医生告诫他们不要吃糖。
• Diabetes is caused by a fault in the insulin production of the body.糖尿病是由体內胰岛素分泌失调引起的。

5 adverse   

adj.不利的；有害的；敌对的，不友好的

参考例句：

• He is adverse to going abroad.他反对出国。
• The improper use of medicine could lead to severe adverse reactions.用药不当会产生严重的不良反应。

6 obese   

adj.过度肥胖的，肥大的

参考例句：

• The old man is really obese,it can't be healthy.那位老人确实过于肥胖了，不能算是健康。
• Being obese and lazy is dangerous to health.又胖又懒危害健康。