Since the twentieth century, studies have demonstrated the impact of media channels on their beneficiaries, especially children and adolescents. From the transmission of moving images, the concept of information rapidly expanded both vertically, through technological development and improved information quality in terms of details, and horizontally, by broadening the target audience. Gradually, in the contemporary society the written press, television and radio have entered almost all the houses in various ways. The impact of mass media has evolved with technology, currently a large number of social events having the press as their trigger element. In this paper the authors start with a case study to illustrate the negative impact that violence conveyed through media channels can have on children and adolescents by generating or increasing their aggressiveness.