an act of making one believes he is stupid but whoops he aint stupid, just being deceived hahahahahaha.. though medicinal-wise rolls eyes
source: just a stupid google search lol https://www.google.com/search?q=placebo+effect&ie=utf-8&oe=utf-8&client=firefox-b-ab&gfe_rd=cr&dcr=0&ei=7Z9QWqSHFueZX53CtdgH