In public discourse, social media is often framed as a clear danger to adolescents, blamed for harming learning, sleep, and socialization. But what does the scientific evidence actually say? To separate fact from fiction, we spoke with expert Séverine Erhel, co-author of the book “Children and Screens.”
The Real Vulnerabilities of the Adolescent Brain
Erhel acknowledges genuine concerns, particularly regarding adolescent brain development. “Teens are in a phase of cerebral immaturity,” she explains. “The prefrontal cortex is not yet fully formed, making self-regulation against the predatory systems of social media—like endless scrolling, algorithms, and the urge to see peers’ lives—very difficult. Adolescents are highly susceptible to these mechanisms.”
Challenging the Simplistic Narratives
However, Erhel’s analysis is more nuanced than many public warnings. She challenges rigid recommendations, such as those focusing solely on strict screen-time limits. Her work, which synthesizes insights from neuropsychologists, anthropologists, and sociologists, suggests the picture is more complex.
The Overlooked Benefits of Connection
A key part of this complexity involves the potential benefits of social platforms. Erhel highlights their role in socialization, identity exploration, and access to supportive communities, especially for marginalized youth. This counters the dominant narrative that frames social media use as exclusively harmful.
The debate is not about dismissing real risks—like exposure to harmful content or excessive use—but about moving beyond alarmism. A scientific approach requires weighing both the documented dangers and the meaningful benefits these digital spaces can provide during a critical developmental period.

