School phone bans don't improve grades or wellbeing, says study
Do you go to a phone-free school?
A new study from the University of Birmingham found that students who use their phones more often may see negative effects on their wellbeing and schoolwork.
But the research also found that banning phones in school doesn't make much of a difference to pupils' grades or how they feel.
De-Graft has been following this story, and he went to meet the BBC's Education Editor Branwen Jeffreys to find out more.