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The '''placebo effect''' is the well-known lessening of pain and other symptoms  

The '''placebo effect''' is the well-known lessening of pain and other symptoms  

when a patient is told that he is getting normal medicine<ref>Scientists generally agree that for the placebo effect to occur, the subject must believe that he is given effective treatment and that it must be suggested to him that the treatment is effective. The question of how and why placebo responses are generated is still a matter of debate. [http://www.socyberty.com/Psychology/The-Power-of-the-Placebo-Effect.71494 The Power of the Placebo Effect] </ref>  

when a patient is told that he is getting normal medicine<ref>Scientists generally agree that for the placebo effect to occur, the subject must believe that he is given effective treatment and that it must be suggested to him that the treatment is effective. The question of how and why placebo responses are generated is still a matter of debate. [http://www.socyberty.com/Psychology/The-Power-of-the-Placebo-Effect.71494 The Power of the Placebo Effect] </ref>  

but actually given an inert substance,<ref>A placebo is a neutral treatment (such as an inactive pill) that may nevertheless promote healing because of the hope and confidence placed in it. [http://www.cox-associates.co.uk/glossary/technical.php Cox Associates] - glossary of psychological terms </ref>  such as sugar pills.

but actually given an [[inert substance]],<ref>A placebo is a neutral treatment (such as an inactive pill) that may nevertheless promote healing because of the hope and confidence placed in it. [http://www.cox-associates.co.uk/glossary/technical.php Cox Associates] - glossary of psychological terms </ref>  such as sugar pills.

It can occur when exploratory surgery is conducted, too. For example, a tension headache will frequently disappear if the patient believes they are being given an analgesic.<ref>Cephalalgia Volume 23 Issue 1 [http://www3.interscience.wiley.com/journal/118883656/abstract?CRETRY=1&SRETRY=0]</ref> Researchers generally believe that its effect is due entirely to the patient's [[expectation]].

It can occur when exploratory surgery is conducted, too. For example, a tension headache will frequently disappear if the patient believes they are being given an analgesic.<ref>Cephalalgia Volume 23 Issue 1 [http://www3.interscience.wiley.com/journal/118883656/abstract?CRETRY=1&SRETRY=0]</ref> Researchers generally believe that its effect is due entirely to the patient's [[expectation]].