New Study Reveals the Potential Risks of Smartphone Ownership for Children Under 12
A recent study published in the peer-reviewed journal Pediatrics has found that owning a smartphone during early adolescence can be associated with increased risks of mental health issues and obesity. The research, conducted by experts from Children’s Hospital Philadelphia, the University of California at Berkeley, and Columbia University, analyzed data from over 10,000 adolescents in the United States who participated in the Adolescent Brain Cognitive Development Study (ABCD) between 2018 and 2020. The study’s findings suggest that children who own smartphones at a younger age are more likely to experience poor sleep, depression, and obesity compared to their peers without smartphones.
According to the study, 63.6% of the participants owned a smartphone, with the median age of receiving their first smartphone being 11 years old. The researchers found that the younger the child was when they received their first smartphone, the greater the risks of poor health outcomes. Lead author Ran Barzilay, a child psychiatrist with the Youth Suicide Prevention, Intervention and Research Center at the Children’s Hospital of Philadelphia, stated that the study did not examine the specific activities children engaged in on their smartphones, but rather focused on the mere fact of owning a smartphone at a young age.
Key Findings and Implications
The study’s results showed that children who obtained a smartphone by age 12 were more likely to experience mental health issues, such as depression, and were also at a higher risk of obesity. In contrast, children who did not own a smartphone at age 12 had better mental health outcomes one year later. Barzilay emphasized that parents should approach the decision to give their children a smartphone with caution and consideration, recognizing the potential risks and benefits associated with smartphone ownership.
Barzilay also noted that smartphones can play a constructive role in teens’ lives by strengthening social connections and facilitating learning. However, it is essential for parents to monitor their children’s smartphone use and ensure they are not exposed to inappropriate content. The study’s findings are consistent with growing concerns about the impact of increased screen time on children’s and teens’ mental and physical health.
Expert Recommendations and Future Research Directions
Former U.S. Surgeon General Dr. Vivek Murthy has recommended creating “tech-free zones” and encouraging kids to foster in-person friendships. Several states have also taken steps to ban cellphones in schools. According to Pew Research Center, 95% of teens between the ages of 13 and 17 owned a smartphone in 2024, and more than half of parents with children between 11 and 12 years old reported that their kids owned smartphones.
Barzilay emphasized that it is likely that most teens will eventually own a smartphone, and therefore, it is crucial for parents to monitor their children’s smartphone use and ensure they are using their devices responsibly. The researchers behind the study hope to investigate which aspects of smartphone use and ownership are connected to negative health effects for young people and identify ways to protect children and adolescents from these consequences.
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