CNN News: 研究顯示空氣污染可能會損害思考能力

And today begins with an international study that suggests air pollution may be damaging the people's ability to think. The study came out Tuesday in the proceedings of the National Academy of Sciences. What researchers did was examine information for a survey conducted in China.

今天首先來關注一項國際調查，該調查表明空氣污染可能會損害人們的思考能力。這項研究于周二發(fā)表在《美國國家科學院院刊》上。研究人員對在中國進行的一項調查進行了分析。

It contained verbal and math test scores given to 32,000 people between 2010 and 2014 and the study found that the more polluted their counties were at the time of the test, the more their test scores went down.

該調查包括2010年至2014年間3.2萬人的語言測試成績和數(shù)學成績，調查發(fā)現(xiàn)，考試時污染越嚴重，考試成績下滑得越多。

Researchers say the biggest difference was found in older, less educated men. And as far as dangers go, the study suggests that air pollution could increase people's chances of developing diseases like Alzheimer's and dementia. The study was specific to China, a nation with several cities that have grappled with severe air pollution but researchers say the findings could be applied to countries around the world. One thing scientists didn't find out was how pollution could hurt the brain. And some folks not involved in the study are skeptical.

研究人員表示，最大的差值出現(xiàn)在年齡較大且教育程度偏低的男性群體中。就危險來說，這項研究表明，空氣污染可能會增加阿茲海默癥和癡呆癥的發(fā)病率。該研究聚焦中國，中國多座城市在努力解決嚴重的空氣污染問題，但是研究人員表示，這一研究結果可以適用于世界各國?？茖W家沒能確定污染會如何傷害大腦。一些沒有參加調查的人對這一結果持懷疑態(tài)度。

National Public Radio spoke to James Hendricks (ph), an official with the Alzheimer's Association and he says he doesn't think a direct cause between air pollution and brain function can be proven. That part of the study's findings are speculative. He adds that as far as Alzheimer's goes, other factors like diet, social interaction and exercise all play a role in people's risk for developing the disease.

美國國家公共電臺采訪了阿茲海默癥協(xié)會官員詹姆斯•亨德里克斯，他說他認為空氣污染和大腦機能之間的直接因果關系無法被證明。該研究的這部分結果只是猜測。他還表示，就阿茲海默癥來說，飲食、社會交往和鍛煉等其他因素均在發(fā)病風險中發(fā)揮著重要作用。