had the opportunity to punish or reward them, CNRS press release. Result: Individuals who received punished more the perpetrators of unfair offers, proving that it potentiates aggressive responses to provocations. On the other hand, when the offers were generous, the participants awarded a better reward. The "male" hormone would therefore push men to act with discernment! How to repair myelin The work published yesterday, also in the PNAS, was carried out in mice, but it provides further information on and its possible capacity to repair the nerve fibers, more precisely the myelin which .