Overview
- Receiving a first smartphone before age 13 is associated with increased rates of suicidal thoughts, aggression, detachment from reality and low self-worth among 18- to 24-year-olds.
- Mental Health Quotient scores decline progressively the younger individuals are at first ownership, dropping from an average of 30 at age 13 to just 1 at age five.
- Early social media use explains about 40% of the link between early smartphone access and later mental health issues, with sleep disruption, family strain and cyberbullying also contributing.
- The association holds true across regions, cultures and languages, indicating a critical developmental window under age 13.
- Researchers call for enforcing smartphone age limits, integrating digital literacy into education and holding tech companies accountable for youth protections.