(Credit: Andrii Iemelianenko/Shutterstock) In A Nutshell A new study tracking 8,000+ American pre-teens found that addiction-like screen behaviors at ages 11-12 were associated with higher risks for depression, suicidal thoughts, sleep problems, and early substance use one year later. Nearly all participants were under 13 (the minimum age for most social platforms) yet many reported active social media use, revealing that age restrictions aren’t being enforced. It’s not about screen time hours.