How can evolution explain body symmetry?

Studies show that the likelihood of major depression among highly religious Pentecostals is three times greater than among persons who said they had no religious preference. Other investigators have also shown that the religious are frequently among the lowest in mental health. The Epidemiology of ReligionYes, there is "meat for a discussion" but is there enough relation with evolution or ID? Perhaps this question has more chance to become a New Topic?