Loss of brain tissue in older women may be linked to air pollution

You'll have to see if your doctor immediately blames the stroke for all the brain problems rather than looking closely at everything that may have affected the brain in the recent past. Occams razor?
http://www.mdlinx.com/internal-medicine/medical-news-article/2015/06/26/6209322/?

Wake Forest Baptist Medical Center News, 06/26/2015

Researchers may have discovered a link between the loss of brain tissue and air pollution. Their research appears in the June 15 issue of the Annals of Neurology. The findings could help explain how the brain ages and functions in older women who lived in regions with greater airborne levels of coarse particles.