A large-scale study by researchers at the Karolinska Institutet, tracking over 8,000 U.S. children from ages 9 through 13, has found a clear association between heavy social media use and worsening concentration—particularly symptoms linked to ADHD (attention-deficit/hyperactivity disorder). The findings, published in Paediatrics Open Science, suggest that platforms like Instagram, Facebook, and Messenger may negatively affect attention spans more than other screen-based activities such as watching TV or playing computer games.
Key Findings:
– Children who spent more time on social media showed a gradual decline in concentration ability over time.
– This effect was not observed with television viewing or video gaming.
– Social media use rose sharply with age—from 30 minutes daily at age 9 to 2.5 hours by age 13.
– The negative impact on concentration was independent of socioeconomic background or genetic predisposition to ADHD.
– While the decline per child was modest, researchers warn it could be significant for those already near the diagnostic threshold for ADHD—potentially increasing ADHD diagnoses by up to 30% at the population level with just one extra hour of daily social media use.
Why Social Media May Be Unique:
Professor Torkel Klingberg, a cognitive neuroscientist and study co-author, suggests that constant interruptions and the anticipation of notifications—even in their absence—may fragment attention in ways other digital activities do not. “Just the thought that something is coming can disrupt concentration,” he notes.
Broader Context:
Experts attribute the recent surge in ADHD diagnoses to factors like greater awareness and reduced stigma, but this study adds social media use as a potential environmental contributor. With 97% of children and teens (ages 8–19) using social media—and 86% using it daily, according to the Internet Foundation’s 2025 report—the implications are substantial.
Top Platforms Among Youth:
YouTube, Snapchat, TikTok, Instagram, and Roblox dominate usage, with Snapchat leading in daily engagement among older children.
Takeaway:
While social media is now a normative part of childhood, this research highlights its distinct cognitive risks—urging parents, educators, and policymakers to consider usage guidelines and digital well-being strategies, especially for children showing early signs of attention difficulties.
Source: Karolinska Institutet / Pediatrics Open Science; Internet Foundation’s “Children and the Internet 2025”
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