Really? ...' Born-Again' believers - Have Smaller Brains (Men vs. Women Brains?) Well, there you have it. So are Born Again believers dumb? Oh no, they're not saying that... directly. But that's how some will view a new study from Duke University Medical Center. According to the researchers (Their brain size is unknown) Protestants have bigger brains than born-again Christians. The study, which examined the hippocampus region of the brain, found that Protestants who did not have a "born again" experience had significantly more gray matter than either those who reported a life-changing religious experience, Catholics, or unaffiliated older adults."...