Small particulate matter causes increased risk of Alzheimers, as well as previously found risk of heart and lung problems.

http://neurosciencenews.com/air-pollution-women-dementia-6031/ This article talks about a study, "Particulate air pollutants, APOE alleles and their contributions to cognitive impairment in older women and to amyloidogenesis in experimental models."

Small particulate matter causes increased risk of Alzheimers, as well as previously found risk of heart and lung problems. These particles are produced in gas burning engines and some other surprising sources (below).

In heavily polluted areas with higher concentrations of these particles…
81% greater risk of global cognitive decline
92% greater risk of Alzheimer's Disease

Here's another source you probably haven't heard about…

From: Consumer Products and PM2.5 http://www.deq.utah.gov/Topics/FactSheets/fspages/consumerproducts.htm

"Unexpected Sources"

"What most people might not know is that cosmetics, personal care products, disinfectants, laundry detergents, air fresheners, fabric softeners, dryer sheets, dish detergents, all-purpose cleaners, soaps, hand sanitizers, lotions, deodorants, shampoos, and hair spray contain organic chemicals that release VOCs when used." Common household cleaners are also cited as a problem.

The chemicals that you are carrying around with you on your clothes from scented detergents all day – every day, plus chemicals in cosmetics and hair care, in addition to the chemicals from your detergents on your sheets you're exposed to all night might be causing you far more problems than you realize.

Of course, these chemical also effect your kids, family, friends, and others – especially those with asthma and other breathing problems.

But, you have to wonder as the study mentions with Alzheimer's risk, what problems are going to occur in the future? 

I wonder if it will similarly result in the serious risks noted above from heavily polluted areas.

You have to wonder as the study mentions with Alzheimer's risk, what problems are going to occur in the future?

Other common causes of breathing problems <blog post>.