www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

English 中文網(wǎng) 漫畫網(wǎng) 愛新聞iNews 翻譯論壇
中國(guó)網(wǎng)站品牌欄目(頻道)
當(dāng)前位置: Language Tips> Audio & Video> 新聞播報(bào)> Special Speed News VOA慢速

Study ties some pesticides to risk of ADHD in children

[ 2010-05-26 11:50]     字號(hào) [] [] []  
免費(fèi)訂閱30天China Daily雙語(yǔ)新聞手機(jī)報(bào):移動(dòng)用戶編輯短信CD至106580009009

Get Flash Player

Download

Study ties some pesticides to risk of ADHD in children

This is the VOA Special English Health Report.

A.D.H.D. is attention deficit hyperactivity disorder. Government estimates say three to seven percent of school-age children in the United States have it. Adults can also have it. People with A.D.H.D. have problems with paying attention, controlling their behavior and being overly active.

Now, a study has linked an increased risk of A.D.H.D. in children to exposure to some kinds of pesticides. The chemicals are known as organophosphate pesticides. They kill insects by attacking their nervous systems. Earlier studies have shown that some of the compounds cause hyperactivity and thinking deficits in laboratory animals.

Researchers at the University of Montreal in Canada and Harvard University in Massachusetts did the study. It involved more than 1,100 children between the ages of eight and 15. One hundred nineteen of them were identified as having A.D.H.D.

The researchers tested all the children for products that break down from organophosphates. Maryse Bouchard of the University of Montreal and Harvard lead the research team. She says, "The higher the level of pesticide residue in the urine, the higher the risk of A.D.H.D. in the children."

The scientists reported that the risk of the disorder was almost double in children with high levels compared to those with no measurable level. They say exposure at levels common among children in the United States may increase the chances that a child will be diagnosed with A.D.H.D.

Maryse Bouchard says the study found that exposure could play a part in behaviors such as inattention and hyperactivity. But she also says the study does not prove that the chemicals cause the disorder.

MARYSE BOUCHARD: "We can't affirm that exposure to pesticides is causing A.D.H.D. We would need a different type of study to be able to say that."

The researchers say forty organophosphate pesticides are registered with the United States government. The chemicals are used to protect fruits and vegetables. They are also used to poison insects in other places such as homes.

Lynn Goldman is an environmental health scientist at Johns Hopkins University School of Public Health in Maryland. She notes that the use of pesticides, including organophosphates, is widespread in developing countries. Children come in contact with high levels of pesticides through farming.

LYNN GOLDMAN: "And those kids have much more serious, much more severe neurological problems. So we do see evidence of effects in those populations globally."

The study was published in the journal Pediatrics.

And that's the VOA Special English Health Report, written by Caty Weaver with Jessica Berman. I'm Steve Ember.

organophosphate: 有機(jī)磷

Related stories:

A test for brain injury creates its own risks in children

Punishment or reward: which works better on behavior?

Deficits found in brain's reward system in A.D.H.D. patients

Learning Disabilities, Part 7: Attention Deficit Disorder

(來(lái)源:VOA 編輯:陳丹妮)

 
中國(guó)日?qǐng)?bào)網(wǎng)英語(yǔ)點(diǎn)津版權(quán)說(shuō)明:凡注明來(lái)源為“中國(guó)日?qǐng)?bào)網(wǎng)英語(yǔ)點(diǎn)津:XXX(署名)”的原創(chuàng)作品,除與中國(guó)日?qǐng)?bào)網(wǎng)簽署英語(yǔ)點(diǎn)津內(nèi)容授權(quán)協(xié)議的網(wǎng)站外,其他任何網(wǎng)站或單位未經(jīng)允許不得非法盜鏈、轉(zhuǎn)載和使用,違者必究。如需使用,請(qǐng)與010-84883631聯(lián)系;凡本網(wǎng)注明“來(lái)源:XXX(非英語(yǔ)點(diǎn)津)”的作品,均轉(zhuǎn)載自其它媒體,目的在于傳播更多信息,其他媒體如需轉(zhuǎn)載,請(qǐng)與稿件來(lái)源方聯(lián)系,如產(chǎn)生任何問(wèn)題與本網(wǎng)無(wú)關(guān);本網(wǎng)所發(fā)布的歌曲、電影片段,版權(quán)歸原作者所有,僅供學(xué)習(xí)與研究,如果侵權(quán),請(qǐng)?zhí)峁┌鏅?quán)證明,以便盡快刪除。
 

關(guān)注和訂閱

人氣排行

翻譯服務(wù)

中國(guó)日?qǐng)?bào)網(wǎng)翻譯工作室

我們提供:媒體、文化、財(cái)經(jīng)法律等專業(yè)領(lǐng)域的中英互譯服務(wù)
電話:010-84883468
郵件:translate@chinadaily.com.cn
 
 
主站蜘蛛池模板: 草草影院ccyy国产日本欧美 | 国产第九页 | 国产成人高清视频在线观看免费97 | 国产成人综合手机在线播放 | 怡红院成人在线 | 草草视频在线观看最新 | 亚洲福利精品一区二区三区 | 欧美乱一级在线观看 | 99久久精品国产片久人 | 性欧美成人依依影院 | 国产99久久亚洲综合精品 | 天天躁夜夜躁狠狠躁2024 | 欧美三级在线视频 | 亚洲精品国产一区二区图片欧美 | 日韩免费高清一级毛片 | 亚洲国产日产韩国欧美综合 | 99精品热女视频专线 | 久久er热这里只有精品23 | 黄黄的网站在线观看 | 久久久国产99久久国产一 | 国产三香港三韩国三级不卡 | 狠狠色噜噜狠狠狠米奇9999 | 2021一本久道 | 成人毛片在线观看 | 成人a级高清视频在线观看 成人a毛片 | 一区中文字幕 | 日本一级毛片在线看 | 欧美最新的精品videoss | 色偷偷在线刺激免费视频 | 国产精品女在线观看 | 亚欧美 | 真实一级一级一片免费视频 | 真正全免费视频a毛片 | 成人a毛片高清视频 | 日韩一级影片 | 国产午夜精品不卡视频 | 成人欧美一区二区三区黑人 | 亚洲精品国自产拍在线观看 | 国产一级做性视频 | 亚洲国产老鸭窝一区二区三区 | 成人牲交一极毛片 |