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Air Pollution Tied To Brain Aging

A general view taken from the north of Tehran shows the heavily polluted skyline of the capital on December 31, 2014. Almost
A general view taken from the north of Tehran shows the heavily polluted skyline of the capital on December 31, 2014. Almost 400 people have been hospitalised with heart and respiratory problems caused by heavy air pollution in Tehran, with nearly 1,500 others requiring treatment. AFP PHOTO/BEHROUZ MEHRI (Photo credit should read BEHROUZ MEHRI/AFP/Getty Images)

Air pollution is known to increase the risk for stroke and other cerebrovascular disorders. But now researchers have found it is also linked to premature aging of the brain.

The study, in the May issue of Stroke, used data on 943 men and women over 60 who were participants in a larger health study. Researchers did M.R.I. examinations and gathered data on how close the people lived to major highways. They also used satellite data to measure particulate matter smaller than 2.5 micrometers, or PM 2.5, a form of pollution that easily enters the lungs and bloodstream.

Read more on The New York Times

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