The OP cited a study by "Jean Twenge, Jonathan Haidt, and colleagues in the Journal of Adolescence" but the provided link is broken. Here is a working link [1].

The OP cited a study by "Jean Twenge, Jonathan Haidt, and colleagues in the Journal of Adolescence" but the provided link is broken. Here is a working link [1]. This source is one of the highest quality pieces of evidence presented in support of the claim that "children are lonelier than ever". Unfortunately the OP suggested very little in terms of "what can be done", beyond the classic "reduce screen time" recommendation. Excerpts from [1]: > The Programme for International Student Assessment (PISA) survey of 15- and 16-year-old students around the world included a 6-item measure of school loneliness in 2000, 2003, 2012, 2015, and 2018 (n = 1,049,784, 51% female) across 37 countries. > School loneliness increased 2012–2018 in 36 out of 37 countries. Worldwide, nearly twice as many adolescents in 2018 (vs. 2012) had elevated levels of school loneliness. Increases in loneliness were larger among girls than among boys and in countries with full measurement invariance. In multi-level modeling analyses, school loneliness was high when smartphone access and internet use were high. > School loneliness was positively correlated with negative affect and negatively correlated with positive affect and life satisfaction, suggesting the measure has broad implications for adolescent well-being. > The psychological well-being of adolescents around the world began to decline after 2012, in conjunction with the rise of smartphone access and increased internet use, though causation cannot be proven and more years of data will provide a more complete picture. [1] Worldwide increases in adolescent loneliness https://www.sciencedirect.com/science/article/pii/S0140197121000853 https://www.sciencedirect.com/science/article/pii/S014019712...