Just came across a rather provocative article on LiveScience.com entitled, “What Drives Religious Belief? It’s Not Intuition”
Couple of interesting quotes:
“We know from twin studies that, at least in the American population, genes tend to have a greater influence than (shared) environment on whether someone becomes religious as an adult,”
“… people’s spirituality or religiousness likely develops based on their upbringing, culture and education”
” … atheists are generally smarter than religious people, according to studies done in the United States.”
” … analytical thinking may inhibit supernatural beliefs.”
There are several “linked” articles throughout the page which you may also want to read. There is also a link to the actual study. Interesting stuff.
NOTE: When I visited the site, it took awhile for it to “settle down” — apparently because there are several ads on the page. But it’s worth the wait.