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Having a Cellphone at Younger Than 12 Could Carry Health Risks, Study Says

By Eric December 7, 2025

A recent study has revealed concerning links between early cellphone access and mental health issues among tweens, highlighting a significant public health concern. Researchers discovered that children who received their first cellphone before the age of 12 exhibited higher rates of depression, poor sleep quality, and obesity compared to their peers who got their devices later. This study sheds light on the potential negative impacts of technology on young adolescents, a demographic that is increasingly immersed in digital environments.

The research involved a comprehensive analysis of various factors, including sleep patterns, mental health assessments, and physical health indicators among tweens. Findings indicated that those with early cellphone access reported more symptoms of depression, suggesting that constant connectivity may contribute to feelings of anxiety and isolation. Furthermore, the study found that inadequate sleep, often linked to excessive screen time, was prevalent among early cellphone users, which can exacerbate mood disorders and lead to weight gain. Obesity rates were also notably higher in this group, likely due to sedentary behavior associated with prolonged cellphone use.

This study serves as a critical reminder for parents and guardians about the importance of monitoring children’s screen time and encouraging healthier habits. Experts suggest that limiting cellphone access until later in adolescence may mitigate some of these risks, allowing for more balanced development. As society continues to navigate the complexities of technology use among youth, this research provides a vital perspective on how early exposure to digital devices can influence both mental and physical health outcomes in the formative years of childhood.

Researchers found higher rates of depression, poor sleep and obesity among tweens who had early access to a cellphone.

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