The ancient compendium of rabbinical thought, states that: "Where there is hope, there is life." Positive thinking just means that you approach unpleasantness in a more positive and productive way. You think the best is going to happen, not the worst. Positive thinking often starts with self-talk. Placebo also known as a fake treatment can sometimes improve a patient's condition simply because the person has the expectation that it will be helpful. The more a person believes they are going to benefit from a treatment, the more likely it is that they will experience a benefit. It has been shown that placebos have measurable psychological effects. They tend to speed up pulse rate, increase blood pressure etc… The placebo effect is part of the human potential to react positively to a healer. A patient's distress may be relieved by something for which there is no medical cure.