Study Links Early Smartphone Access to Higher Eating Disorder Rates in Teens

Key points

• 70% of 12-year-olds in the study owned a smartphone; 24% reported at least one eating disorder symptom by age 14.
• In contrast, only 16% of 14-year-olds who did not have a smartphone at age 12 reported such symptoms.
• Kids with early phone access were twice as likely to tie self-worth to weight and 50% more likely to attempt weight control through disordered behaviors.
• The study emphasizes the timing of device access rather than just total screen time, noting that exposure to curated influencer images drives body dissatisfaction.
• Dr. Mitch Prinstein, a psychologist not involved in the study, suggests delaying phone access by six months to a year could improve mental health outcomes.

Background

This finding builds on prior concerns regarding adolescent mental health and digital exposure. While previous research often focused on total screen time, this study isolates the age of first smartphone ownership. It aligns with broader discussions about the impact of social media on youth, including earlier reports on the prevalence of social media accounts among under-13s despite platform age restrictions.

How outlets are covering it

Futurism and KSL.com both highlight the correlation between early smartphone ownership and eating disorders, citing the same JAMA Network Open study. Futurism emphasizes the 'grim consequence' of preteen device access, while KSL.com focuses on practical advice for parents, such as limiting app downloads and keeping phones out of bedrooms. The Independent’s coverage was obscured by technical code in the provided source, so its specific perspective could not be synthesized, but it likely covers the same study given the shared headline theme. All sources agree that the mechanism involves exposure to appearance-focused content, but they differ in emphasis: Futurism frames it as a warning, while KSL.com offers mitigation strategies.

Why it matters

The study provides concrete evidence that the age of smartphone introduction is a critical factor in adolescent mental health, specifically regarding eating disorders. It suggests that delaying device access could be a simple, effective intervention for parents and policymakers. This adds to the growing body of evidence linking social media exposure to negative health outcomes in children, urging a reevaluation of current norms around preteen technology use.

What to watch

Parents and educators may consider implementing stricter guidelines on smartphone access for preteens, potentially delaying ownership until age 13 or later. Researchers may further investigate the specific types of content and platforms that contribute most to these outcomes. Policymakers might review age restrictions for social media platforms, given that many children bypass them. The study does not provide a definitive 'magic answer' for timing, but it supports the idea that earlier access is riskier.