I would also be interested to find out if the correlation to the lower anxiety levels can be attributed to the fact that most people who believe strongly in there faith also have the belief that in times of testing that God would show them the way, hence the finding. This would also explain the reasoning behind not being able to fix their mistakes.

If everyone cared and nobody cried
If everyone loved and nobody lied
If everyone shared and swallowed their pride
Then we'd see the day when nobody died....Chad Kroeger