Your Weekly Vitamin!

"Going to church weekly is good for you," argues T. M. Luhrmann, a professor of anthropology at Stanford and the author of When God Talks Back: Understanding the American Evangelical Relationship With God.

"One of the most striking scientific discoveries about religion in recent years," she says in a recent op-ed published in The New York Times, "is that going to church weekly is good for you. Religious attendance – at least, religiosity – boosts the immune system and decreases blood pressure. It may add as much as two to three years to your life."