Car Fumes can change the Brain in two hours汽車尾氣能在兩小時內(nèi)改變大腦

高齊云

Air pollution2 can change our brain. It changes how parts of our brainconnect3 with other parts. Research shows this can happen in two hours. Aresearcher was surprised by his research. He said，“For many years， scientiststhought the brain may be protected4 from the bad effects5 of air pollution.”Hisstudy showed there was a connection between air pollution and thinking.

The study was on 25 adults. They took in car fumes in a laboratory6.Scientists took brain scans7 of them for two hours. The scans showed that thethinking networks8 in the brain changed. There were fewer connections betweenthe networks.

Another professor9 worried about how traffic10 pollution can change thenetworks in our brain. She said people should close car windows when in traffic.The brains of the 25 people were OK after they took in clean air.

空氣污染可以改變我們的大腦。它改變了我們大腦各部分與其他部分的聯(lián)系方式。研究表明，這可以在兩小時內(nèi)發(fā)生。一位研究人員對他的研究感到驚訝。他說：“多年來，科學家們認為大腦可以免受空氣污染的不良影響?！彼难芯勘砻?，空氣污染和思維之間存在聯(lián)系。

這項研究以25 名成年人為對象。他們在實驗室里吸入了汽車尾氣?？茖W家們對他們進行了兩個小時的腦部掃描。掃描顯示大腦中的思維網(wǎng)絡(luò)發(fā)生了變化。網(wǎng)絡(luò)之間的連接變少了。

另一位教授擔心交通污染會改變我們大腦中的網(wǎng)絡(luò)。她說人們在車流中應(yīng)該關(guān)閉車窗。在吸入清新空氣后，那25 個人的大腦恢復了正常。

Notes

1. fume 刺鼻；或有害的氣；煙

2. pollution 污染；污染物

3. connect? 使……連接；使……相通

connection 關(guān)系；聯(lián)系；連接；接通

4. protect 保護；防護

5. effect 作用；影響

6. laboratory? 實驗室

7. scan 掃描；檢查

8. network 網(wǎng)絡(luò)；網(wǎng)狀系統(tǒng)

9. professor 教授

10. traffic 路上行駛的車輛；交通