We know that what we think has a powerful effect on our biochemistry and physiology, but just how powerful is this effect? Examples such as placebo, nocebo, voodoo, intention, being in the zone, are explored. The ticklish questions that arise include how far should a health care practitioner go to use these tools and how much must a patient know about their treatment before it becomes unethical?
The Nobel Prize winner, Albert Schweitzer, once stated that the real healer in the healer within and the job of the doctor is to access this inner healer.