A consensus statement on potential negative impacts of smartphone and social media use on adolescent mental health
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The impact of smartphones and social media use on adolescent mental health remains widely debated. To clarify expert opinion, we convened over 120 international researchers from 11 disciplines, representing a broad range of views. Using a Delphi method, the panel evaluated 26 claims covering international trends in adolescent mental health, causal links to smartphones and social media, and policy recommendations. The experts suggested 1,400 references and produced a consensus statement for each claim. The following conclusions were rated as accurate or somewhat accurate by 92–97% of respondents: First, adolescent mental health has declined in several Western countries over the past 20 years. Second, heavy smartphone and social media use can cause sleep problems. Third, smartphone and social media use correlate with attention problems and behavioural addiction. Fourth, among girls, social media use may be associated with body dissatisfaction, perfectionism, exposure to mental disorders, and risk of sexual harassment and predation. Fifth, evidence on social deprivation and relational aggression is limited. Sixth, the evidence for policies like age restrictions and school bans is preliminary. Overall, the results of this deliberative process and the set of concrete recommendations provided can help guide future research and evidence-informed policy on adolescent technology use.
