On the healing power of prayer, it's interesting to see a study that says it was detrimental. I've seen several studies in the past that have shown it to be possibly beneficial. To me, it would make sense that it would be beneficial, even if you don't believe in the God behind the Prayer, if the person being prayed for believes, it could raise their confidence level, and medicines and healing are aided by the patient fighting to heal and having a positive attitude. Hope can sometimes make the difference between healing and dying
I agree it was a surprising result. One would expect some sort of a placebo effect. Maybe it made the patients worried: "Oh shit, I'm so sick that they're praying for a miracle!"