Word: narcoticsâ
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...that the amygdala, a small portion of the brain that has no known role in physical pain but plays a major part in regulating the emotions, is unusually rich in opiate receptors. Thus variations in the number of receptors, or in the concentration of enkephalins?or the presence of narcotics???at these sites may affect emotions and behavior. Said Kosterlitz at the Manhattan award presentation: "The discovery of the enkephalins resembled the opening of Pandora's box, hopefully this time for the benefit of mankind...
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