The most amazing thing about this treatment method is that the patient believes in the results of the given medicine and treatment, and this faith cures the disease. In simple terms, it can be said that it uses the power of human thinking or faith. Placebo-results, in addition to a person's own faith, depend greatly on the positive attitude of the environment and the environment that inspires hope, as well as on the level of optimism, positive thinking and faith of the person. This word was first used in medicine in the 18th century, and it was considered and used as a "necessary lie" that had to be told in order to raise the patient's mood. However, after this "lie", the improvement of the patient's condition was observed, and it became an effective method of treatment and was widely used until the 20th century. It has been found that the brain releases endorphins due to the belief that occurs when the patient is convinced, and this substance replaces the treatment. When the method was tested, some people were healed even though they were told that what they were doing "didn't work", and it was observed that the people were healing because they believed in the "method". Recently, in America, Obecalp, a capsule medicine that uses only sugar, has been released to treat "child laziness" and it is effective. The therapeutic effect of this drug is clear because the name of the drug, when read backwards, reads Placebo.