(KFF Health News) – The amount of air pollution she was exposed to — specifically, the level of fine particulate matter called PM2.5 — was less than half that of his exposure. Was it a coincidence that he had developed severe Alzheimer’s while she had remained cognitively normal?

With increasing evidence that chronic exposure to PM2.5, a neurotoxin, not only damages lungs and hearts but is also associated with dementia, probably not.

“The quality of the air you live in affects your cognition,” said Lee, the senior author of a recent article in JAMA Neurology, one of several large studies in the past few months to demonstrate an association between PM2.5 and dementia. (Read More)