Alarming rises in anxiety and depression among younger generations, many of whom spend much of their time on smartphones and social media, have led some experts to posit that social media is directly responsible for declining youth mental health. But sweeping claims that tech is hurting teens’ mental health may be based on shaky evidence. One large and rigorous study, for example, found that digital technology did have a slightly negative relationship with teens’ mental health—but so did eating potatoes and wearing glasses. While more work needs to be done, worries that new technology is universally harmful are not supported by evidence.