Social media use linked to increased ADHD symptoms in children

Social media use linked to increased ADHD symptoms in children

Excessive use of social media platforms may contribute to a rise in inattention symptoms among children and could be a factor in the increasing incidence of ADHD diagnoses, according to recent research. While other forms of screen time, such as playing video games or watching television, did not show this link, social media use was associated with a gradual decline in concentration levels.

A longitudinal study published in Pediatrics Open Science tracked 8,324 children in the United States starting from ages 9 or 10 for four years. Researchers from the Karolinska Institute in Sweden and Oregon Health & Science University found that social media use — including platforms like Instagram, Snapchat, TikTok, Facebook, Twitter, or Messenger — was linked to an increase in inattention symptoms. The study noted that children who already exhibited symptoms of inattentiveness did not subsequently increase their social media use, suggesting the relationship leads from use to symptoms rather than the reverse.

The study observed a significant rise in usage as children aged. At age 9, participants spent approximately 30 minutes per day on social media; by age 13, that average rose to 2.5 hours, despite minimum age requirements of 13 for many platforms. The researchers found that this association remained regardless of a child's socioeconomic background or genetic predisposition to ADHD.

"Our study suggests that it is specifically social media that affects children’s ability to concentrate,"

Torkel Klingberg, professor of cognitive neuroscience at the Karolinska Institute, via news.ki.se

Klingberg explained that the constant stream of notifications and messages on these platforms acts as a mental distraction, impairing the ability to stay focused. This finding is echoed by researchers who speculate that the mere presence of a mobile phone can impair learning and attention on psychological tests.

Impact on Brain Structure and Development

Beyond behavioral symptoms, screen exposure may physically alter the brain. A study published in Translational Psychiatry used advanced MRI imaging on more than 10,000 children to find an association between extended screen time and changes in brain structure. Specifically, children with high screen use showed reduced cortical thickness and volume in the right putamen, which is involved in habit formation and reward processing.

Changes were also observed in the prefrontal cortex, an area responsible for decision-making, emotional regulation, and focus. Researchers stated that smaller cortical volume may partially explain the link between screen time and more severe ADHD symptoms, as these structural changes can make it harder for children to regulate behavior and pay attention.

The Cycle of Addiction and Mental Health

The design of these platforms is increasingly under scrutiny. On March 25, a California state civil trial found Meta and Google liable for designing apps that can hook young users. The case centered on features such as infinite scroll, push notifications, and curated algorithms, which lawyers argued were engineered to create addiction in vulnerable children and teens.

Pediatrician Jason Nagata, of the University of California, San Francisco, noted that two-thirds of 11- and 12-year-olds in the Adolescent Brain Cognitive Development (ABCD) study had underage accounts. His research, published in the April 2026 American Journal of Preventive Medicine, found that preteens showing signs of social media addiction, such as difficulty logging off and obsessive thinking about the platforms, experienced more mental health problems a year later, including poorer sleep and higher rates of depression and ADHD.

A separate survey of 1,187 caregivers found that 72% of children aged 10 and older with ADHD use social media. Among this group, 35% reported adverse mental health effects, such as sadness, anxiety, and sleep problems. These negative outcomes were approximately 70% higher than those seen in adolescents who do not use social media. Additionally, 14% of these adolescents engaged in self-harm and 15% experienced eating problems, with higher numbers reported for girls.

Further research published in Springer involving 100 high school and university students with ADHD and 400 controls found that those with ADHD had a significantly higher prevalence of social media disorder (15% vs. 3.3%). This group reported using social media more for Escape and Social Compensation, while controls prioritized Entertainment and Social Maintenance. Participants with ADHD also engaged more frequently with sexual and negative content.

Alternative Activities and Next Steps

While social media appears detrimental, other digital activities showed different results. The Pediatrics Open Science study found that children who played video games or watched videos actually experienced reduced hyperactivity and impulsivity. a systematic review in the Journal of Autism and Developmental Disorders found that cognitively engaging exercises, such as martial arts or team sports, significantly improved sustained attention in children and adolescents with ADHD.

To mitigate risks, Linda Charmaraman, Ph.D., suggests that caregivers avoid judgmental responses and instead collaborate with teens to help them become mindful of their online experiences.

Researchers from the Karolinska Institute now plan to continue following the children from the original study beyond the age of 14 to determine if the association between social media and inattention symptoms persists.