It is important for developing countries to invest in adolescents, both to prevent the negative consequences of potential risky behavior and to promote healthy growth, modern skills, and the capacity to participate in the society of the future. The most effective way to make such investments is to think and act holistically and from a preventive and developmental outlook. The mass media and new technologies have a significant impact on the health of adolescents and youth.  It is essential to work with mass media to promote a positive image of adolescents and youth and to incorporate new technologies in health promotion.