UMAR, F. Social Media Rumination as the Missing Link Between Online Activity and Anxiety in Socioeconomically Disadvantaged Adolescents: An Integrative Review and Conceptual Model for the United Kingdom. Journal of Excellence in Social Sciences, [S. l.], v. 4, n. 2, p. 62–78, 2026. DOI: 10.69565/jess.v4i2.423. Disponível em: https://journals.smarcons.com/index.php/jess/article/view/423. Acesso em: 4 oct. 2026.