New research strengthens the previously reported link between air pollution and cognitive decline

Posted on Apr 13, 2017 in Chronic Disease, Environment

[Smog over LA]New research strengthens the previously reported link between air pollution and cognitive decline, after finding that exposure to fine particulate matter could significantly raise the risk of developing Alzheimer’s disease and other dementias.

The research found that exposure to high levels of particulate matter 2.5 (PM2.5) – tiny air pollution particles that are up to 2.5 micrometers in diameter – increased older women’s risk of dementia by over 90 percent, compared with low PM2.5 exposure.

Senior study author Prof. Caleb Finch, of the Leonard Davis School of Gerontology at the University of Southern California (USC), and colleagues say that if their findings apply to the general population, then PM2.5 could account for around a fifth of dementia cases.

The researchers recently reported their findings in the journal Translational Psychiatry.

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