Does praying on behalf of another person's mental or physical health really make a difference? After an exhaustive meta-analysis of research on the topic, David Hodge says the answer is yes. --by Stephen Des Georges

Many adolescents in the United States are already drinking alcohol or using drugs by the time they are exposed to prevention messages. But new research from ASU social workers shows that it's never too late to intervene. Their findings indicate that prevention messages can reverse the course of alcohol use even after students have started experimenting. --by Debra Palka