Swedish researchers have uncovered a direct link between polluted air and dementia.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/pollution-raises-risk-dementia
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/asthma
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cancer
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/respiratory-diseases