A recent study published in Pediatrics has raised significant concerns about the risks associated with giving children smartphones at an early age. The research reveals that children who own smartphones by the age of 12 face notably higher risks of developing depression, obesity, and sleep disturbances. The study underscores that the earlier a child receives a smartphone, the greater the associated risks — with the risk increasing by approximately 10% for each year earlier, starting as early as age 4.

The study analyzed data from more than 10,500 participants, aged between 9 and 16, and found alarming statistics. Specifically, 12-year-olds with smartphones were found to have a 1.3x higher risk of depression, a 1.4x higher risk of obesity, and a 1.6x higher risk of insufficient sleep compared to their peers who did not own smartphones. These findings indicate that smartphone ownership in early adolescence can have a profound impact on both mental and physical health.

Interestingly, even children who received a smartphone at age 13, after having spent age 12 without one, still displayed poorer mental health and sleep patterns. Although the study establishes associations rather than direct causation, experts point out that the results reflect growing concerns about the effects of smartphones on children’s health. They stress the importance of limiting early smartphone exposure and ensuring that children have the support and guidance they need to use technology responsibly.

The research also highlights the importance of discussions between parents, children, and pediatricians before a child receives their first smartphone. Experts recommend setting clear rules and boundaries to mitigate the potential harm caused by early smartphone use. Parents are encouraged to consider not only the convenience of owning a smartphone but also the long-term impact it may have on their child’s well-being.

In response to these findings, pediatricians suggest that early smartphone use may contribute to poor sleep hygiene, decreased physical activity, and greater exposure to social media pressures, all of which can exacerbate the risks of depression and obesity in children. Given the growing body of evidence linking smartphones to mental health challenges in young people, experts are urging caregivers to carefully consider the age at which children are introduced to digital devices.

To protect children's health, researchers suggest delaying smartphone use as long as possible, monitoring screen time, and fostering healthy, active habits that support both mental and physical development. Ensuring that children have a balance between technology and other activities is key to safeguarding their long-term health.

Sources:

• Pediatrics (2025). Study on Smartphone Ownership and Risks of Depression, Obesity, and Sleep Issues in Children.

• American Academy of Pediatrics (2023). The Impact of Early Smartphone Use on Mental Health in Children.

• Healthline (2025). Early Smartphone Exposure Linked to Mental and Physical Health Risks in Children.