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

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。（剩余499字）