|Description||Navari Testo First, surprisingly, this material does not only increase the competitive and antisocial actions in people. The task of French and United states scientists indicates that it also encourages attitudes that sustain or enhance its public position. In the publication of the United states Academy of Sciences (PNAS), they report an experiment that handled this material (or placebo) with teenage young guys. Navari Testo Participants were playing a modified edition of the ultimatum game, in which, after accepting or rejecting an offer to share money from different proponents, they had the opportunity to punish or reward them, CNRS news release. Result Individuals who obtained Navari Testo punished more the perpetrators of unfair provides, proving that it potentiates competitive responses to provocations.