Screen time linked to bipolar and manic symptoms in preteens, suggests study
Toronto: Preteens who spend more time on screens are more likely to develop manic symptoms years two-years later, according to a new study published in Social Psychiatry and Psychiatric Epidemiology.
The findings reveal that 10- to 11-year-olds who engage heavily with social media, video games, texting, and videos show a greater risk of symptoms such as inflated self-esteem, decreased need for sleep, distractibility, rapid speech, racing thoughts, and impulsivity — behaviors characteristic of manic episodes, a key feature of bipolar-spectrum disorders.
“Adolescence is a particularly vulnerable time for the development of bipolar-spectrum disorders,” said first author, Jason Nagata, MD, an associate professor of pediatrics at the University of California, San Francisco. “Given that earlier onset of symptoms is linked with more severe and chronic outcomes, it’s important to understand what might contribute to the onset or worsening of manic symptoms in teenagers.”
Symptoms of social media and video game addiction, characterized by the inability to stop despite trying, withdrawal, tolerance, conflict, and relapse, may play a role. “Screen addictions and irregular sleep patterns may exacerbate manic symptoms in susceptible teens,” said Nagata.
The study adds to the wealth of knowledge on the associations between screen use and poor mental health in adolescents. The study uses data from the nationwide Adolescent Brain Cognitive Development (ABCD) study, the largest long-term study of brain development in the United States.
“This study underscores the importance of cultivating healthy screen use habits early,” says co-author Kyle Ganson, PhD, assistant professor at the University of Toronto’s Factor-Inwentash Faculty of Social Work. “Future research can help us better understand the behaviors and brain mechanisms linking screen use with manic symptoms to help inform prevention and intervention efforts.”
The study collected data from 9,243 early adolescents aged 10-11 years. Study participants provided information about their typical screen habits, as well as whether they had experienced manic or hypomanic symptoms.
“Although screen time can have important benefits such as education and increased socialization, parents should be aware of the potential risks, especially to mental health,” said Nagata. “Families can develop a media plan which could include screen-free times before bedtime.”
References: Nagata, J.M., Zamora, G., Al-Shoaibi, A.A. et al. Screen time and manic symptoms in early adolescents: prospective findings from the Adolescent Brain Cognitive Development Study. Soc Psychiatry Psychiatr Epidemiol (2025). https://doi.org/10.1007/s00127-025-02814-6
