" ... interesting questions about the role cumulative stress plays in 
hastening our mental decline. ... If Owen and her team are right, the 
stress of being a nonconformist takes its toll on our neural system, 
and taking action to stay calm and centered is the brainy way to respond."

http://www.miller-mccune.com/culture-society/religious-affiliation-and-brain-shrinkage-31022/ 

www.peoplewho.org