Twin study suggests genetics and family life influence screen time and mental health links

A large-scale study involving nearly 22,000 Swedish twins suggests that the link between heavy screen use and mental health issues, such as depression and anxiety, may be largely influenced by genetics and shared family environments. While teenagers using interactive screens for more than six hours daily at age 15 showed higher rates of diagnosis, much of this correlation diminished when comparing twins within the same household.

Research indicates that interactive activities like gaming and chatting show stronger ties to mental health symptoms than passive activities like watching television. Experts suggest that rather than implementing blanket bans on devices, active monitoring and understanding the context of use—such as why a young person is playing and who they are interacting with—is more effective for supporting youth well-being.

Additionally, longitudinal research from Örebro University highlights that mental health challenges in early life can impact work capacity later in adulthood, though risk factors during adolescence do not automatically lead to long-term disability.