People In Various Schools of medicine are reevaluating the conventional concept of body. They're prompted to consider how beliefs affect body, and some are exploring the possibility that body might be something very different from what has been previously believed—not just how the body operates, but the very essence of it. They ask, If the body isn't a machine distinct from mind, then what is it? And how can one gain control over it?
Some of the more dramatic medical documentation of the relation of belief and body was presented a number of years ago in studies of individuals suffering from multiple personality syndrome. Patients were observed to have different conditions in their different and separate states of mind. One woman had diabetes in her dominant personality, but when she was in another personality, doctors could run tests on that same body and find no evidence of the disease. Another multiple personality patient had a bodily scar in one personality but not in another of her personalities (one that had no memory of the accident). See The New York Times, June 28, 1988, and May 21, 1985.
Christian Science doesn't attempt to reprogram the brain.