Problematic Internet Use and Its Relationship with Cyberbullying, Anxiety, and Executive Functions in Adolescence

<b>Introduction/objectives:</b> Brain development changes during adolescence are directly linked to various cognitive and behavioral challenges characteristic of this stage. The main objective of this study is to investigate the risks associated with Internet use and its relationship with Executive Functions (EFs) and anxiety in a representative sample of Spanish secondary school students. <b>Methods:</b> The sample consisted of 1164 participants (48% males) aged 12 to 17 years (M age = 14.86; SD = 1.41) from five selected academic centers. Executive Functions were assessed using the Adolescent and Adult Executive Functioning Questionnaire (ADEXI), anxiety was measured with the Depression, Anxiety and Stress Scale (DASS-21), and Problematic Internet Use (PIU) was evaluated with the Internet Addiction Test (IAT). <b>Results:</b> Significant positive correlations were found between the PIU, EF, anxiety, and cyberbullying variables. Predictive models were developed to explain the different variables. <b>Conclusions:</b> The results emphasize the need to increase awareness of these issues and to develop effective intervention strategies. Programs that promote responsible Internet use, along with classroom activities addressing anxiety and Executive Functions, could provide clear benefits.