Unlike placebo or placebo, that causes positive or neutral effects on a man, There is also the 'nocebo', a substance or preparation that can affect someone negatively. In both cases, however, symptoms are psychogenic: the reactions resulting from the expectations and the only person, about how the substance would affect Ibrahim.

1 Comment

1. IsabelGhostly says:

   12/05/2014 at 20:43

   Woa = O Amazing!

   

   

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