Finland is considering banning social media access for children under 15.

The concerns over social media, and in particular the effects on children, have been well-documented — but Finnish researcher Silja Kosola’s recent description of the phenomenon as an “uncontrolled human experiment” has grabbed people’s attention once again.

Kosola, an associate professor in adolescent medicine, has researched the impact of social media on young people, and tells Yle News that the consequences are not very well understood.

“We see a rise in self-harm and especially eating disorders. We see a big separation in the values of young girls and boys, which is also a big problem in society,” Kosola explains.