Abstract : Binge drinking has become a common practice among teenagers, thus a banal behaviour in parties. It is part of a normal psychological evolution that pushes the young to confront limits, prohibitions, other peers, and even more to confront himself. The festive dimension further reinforces this attraction for group transgression. Yet neuroscientific studies are unanimous in showing the negative effects of binge drinking on a maturing brain, with significant neurocognitive and even neuroanatomical alterations. It is illustrated by research conducted on humans and on animal models. This article aims to show the difficult articulation between a clinical practice open to young people and a necessary concern about their behaviour, the danger of which they usually do not know.