This summer I am thrilled to be working as a student researcher at Dana Farber Cancer Institute, one of the hospitals affiliated with Harvard Medical School. Last week, my supervisor told me about a recently published study from the Harvard School of Public Health, which found that over the course of a 16-year period, participants who regularly attended religious services had a 33 percent lower mortality rate than those who never attended religious services.[i][ii] In other words, while all the participants would have died eventually if the study had continued, in general those who regularly attended religious services lived significantly longer. What?!