Hi there,
I have only just recently started checking this forum regularly, and just saw this thread the other day. I think I can make a small contribution:
1) Interesting point: I heard that Christian POWs in Vietnam (and possibly in other countries/wars) survived a lot longer than atheist POWs, as the power of their faith gave them hope, which had a sustaining effect on their lives/bodies. Note: I'm not a Christian myself. Also note: I don't know where this comes from, may not be correct.
2) I won't get into too many details, so I don't break the forum's religious rules, but the path I follow includes karma and reincarnation. What was most helpful and interesting for me, though, was getting this 'confirmed'. When I was really suffering with CFS that was getting close to severe about two years ago, I contacted an astrologer, giving him only my time place and date of birth. He was able to tell me exactly when I got sick, when I got worse, when I got worse still, and then accurately predicted when I would start improving, and each large step that my health would improve. And he was right, even down to the day. That really confirmed, in my mind at least, that I was just suffering the results of harm that I had caused in previous lives. To me, there was just no other way that astrologer could have known all that stuff; he lives on the other side of the world from me, and knows no one that I do.
Knowing that I was just getting bad karma, and then also seeing that my karma would change when the astrologer predicted that it would greatly helped me on a tolerance and acceptance level.
I know one member wrote above that this is not entirely how karma works... I am not a Buddhist, but I do respectfully disagree with what PatJ says. Let's take the example of eating food that is not good for you, which damages your health... in this instance, your karma did not allow you the best knowledge of nutrition; perhaps it meant you were born in a family where eating unhealthy food was commonplace and went without question. The result is that you get sick, thus receiving the suffering that you are allotted. Your karma may also be due to change at some point in your life, when you might receive better knowledge of how to eat, thus improving your health... this is my understanding of how karma works, though I'm not trying to start anything against PatJ by saying this. Like I said, I am not a Buddhist.
Anyway, I hope this is interesting.