I have often heard that a persons belief in god has helped them recover from a serious illness. I have also heard JW's say god was punishing them for some wrong they have done.I think it's possible that the mind can play a part in the healing process. Belief in god may have an effect but I feel some people go way to far.
Here's a link---http://www.msnbc.com/news/987695.asp?vts=110220032005
Wolfy