A study by Rush University Medical Center in Chicago found that "belief in a concerned God can improve response to medical treatment" in patients diagnosed with clinical depression. The operative word here is "caring," the researchers said. "The study found that those with strong beliefs in a personal and concerned God were more likely to experience improvement."

The researchers compared the levels of melancholy or hopelessness in 136 adults diagnosed with major depression or bipolar depression with their sense of "religious well-being." They found participants who scored in the top third of a scale charting a sense of religious well-being were 75 percent more likely to get better with medical treatment for clinical depression. "In our study, the positive response to medication had little to do with the feelings of hope that typically accompanies spiritual belief," said study director Patricia Murphy. "It was tied specifically to the belief that a Supreme Being cared."