Studies like this one, from the American Psychological Association, indicate a link between religious faith and spirituality, and mental health. In this study, “higher religious faith and spirituality are associated with increased coping, greater resilience to stress, an optimistic life orientation, greater perceived social support and lower levels of anxiety.” In other words, those who have higher religious faith worry less? 

Richard Dawkins couldn’t possibly be wrong again?! Yes, I am afraid he could. Check this out and draw your own conclusions.