Early Smartphone Ownership Linked to Mental Health Risks in Children, Major Study Finds
Table of Contents
A new study published Monday in the peer-reviewed journal Pediatrics reveals a concerning correlation between smartphone access before age 12 and increased risks of mental health issues, including depression, and physical health concerns like obesity in children. The research underscores a growing debate about the appropriate age for children to receive their first smartphone and the potential consequences of early access to these devices.
The Landmark ABCD Study Reveals Key Insights
Researchers from Children’s Hospital Philadelphia, the University of California at Berkeley, and Columbia University analyzed data from over 10,000 adolescents across the United States. The data was collected as part of the Adolescent Brain Cognitive Development Study (ABCD), a long-term initiative funded by the National Institutes of Health and described as “the largest long-term study of brain development and child health” in the country.
The study found that 63.6% of participants owned a smartphone, with the median age of first ownership being 11 years old. Critically, the research team determined that younger children faced greater risks of poor sleep and obesity linked to smartphone ownership, with health outcomes worsening the earlier a child received their first device.
“We didn’t even look at what the kids did on the phone,” explained a lead author of the study, a child psychiatrist with the Youth Suicide Prevention, Intervention and Research Center at the Children’s Hospital of Philadelphia. “We basically asked one simple question: does the mere factor of having one’s own smartphone at this age range have anything to do with health outcomes?”
Mental Health Impacts and the Role of Other Devices
The Pediatrics study directly compared children who had obtained a smartphone by age 12 with those who had not. One year later, researchers observed that children without smartphones were experiencing better mental health outcomes than their peers who had early access. This finding remained consistent even when accounting for the presence of other technological devices, such as tablets or iPads.
“We did account for the fact that the kids may have had other technological devices like tablets or iPads, and it did not change the results,” the psychiatrist confirmed in a recent interview.
A Call for Careful Consideration
The study’s findings suggest that parents should view smartphones as a “significant factor in teen health” and approach the decision to provide a child with a phone with careful consideration. While acknowledging that smartphones can offer benefits – strengthening social connections and facilitating learning – researchers emphasize the potential for harm. Some families also consider smartphones essential for their children’s safety.
Looking ahead, the research team plans to investigate which specific aspects of smartphone use and ownership contribute to negative health effects. They also intend to study children who acquired smartphones before age 10 to identify those most vulnerable to the detrimental impacts and those who might benefit most from responsible use. Ultimately, the goal is to develop strategies to protect children and adolescents from the potential consequences outlined in the study.
Broader Concerns About Screen Time and Youth Mental Health
This research adds to a growing body of evidence highlighting the potential risks of excessive screen time for children and teenagers. In 2023, former U.S. Surgeon General Dr. Vivek Murthy issued an advisory on social media and mental health, recommending the creation of “tech-free zones” and encouraging children to prioritize in-person friendships. Several states are also considering or have implemented bans on cellphones in schools.
Data from the Pew Research Center indicates the prevalence of smartphone ownership among teens. In 2024, 95% of teenagers between the ages of 13 and 17 owned a smartphone. However, ownership extends to younger age groups as well, with over half of parents reporting that their children aged 11-12 have smartphones. Nearly 30% of parents with children aged 8-10, 12% with children aged 5-7, and 8% with children under 5 also report their children owning smartphones.
“Most probably, all teens will eventually have a smartphone,” the psychiatrist acknowledged. “Once this happens, it is advisable to monitor what our children do on their phones, ensuring they’re not exposed to inappropriate content and that smartphones don’t disrupt sleep.”
