Open Access in JAH
- Social media use (SMU) has become an intrinsic part of adolescent life. Negative consequences of SMU for adolescent health could include exposures to online forms of aggression. We explored age, gender, and cross-national differences in adolescents' engagement in SMU, then relationships between SMU and victimization and the perpetration of cyber-bullying.
- Insufficient and poor sleep patterns are common among adolescents worldwide. Up to now, the evidence on adolescent sleep has been mostly informed by country-specific studies that used different measures and age groups, making direct comparisons difficult. Cross-national data on adolescent sleep that could inform nations and international discussions are lacking. We examined the sleep patterns of adolescents across 24 countries and by gender, age, and affluence groups.
- Participatory research approaches emerged in the 1970s and have gained growing recognition since. Today, active public involvement in research is a fundamental aspect of many publicly funded research programs. As a consequence, frameworks, principles, and standards for involving the public have emerged [1,2]. The adoption of the United Nations Convention on the Rights of the Child 1989  focused attention on youth participation in particular. In this Convention, article 12 states that children and young people should have their opinions taken into account in all major decisions affecting their lives.