Skeptics 1, Believers 0

Prayer doesn't work. Like, duh! However, the really surprising thing in this new report is that knowing one is being prayed for might lead to more complications.
Highlights:

Prayers offered by strangers had no effect on the recovery of people who were undergoing heart surgery, a large and long-awaited study has found. And patients who knew they were being prayed for had a higher rate of post-operative complications like abnormal heart rhythms, perhaps because of the expectations the prayers created, the researchers suggested.

...the results ... raised questions about how and whether patients should be told that prayers were being offered for them...

In another of the study's findings, a significantly higher number of the patients who knew that they were being prayed for — 59 percent — suffered complications, compared with 51 percent of those who were uncertain. The authors left open the possibility that this was a chance finding. But they said that being aware of the strangers' prayers also may have caused some of the patients a kind of performance anxiety.