A new study has found that teenagers are spending a third of their school day looking at their smartphones. Per the report, middle and high school students are checking their phones dozens of times while at school. They also found that this frequent checking was linked to both weaker impulse control and attention spans. “Smartphones are no longer something students use occasionally during school - they’re present during every hour of the day," lead author Dr. Eva Telzer from the University of North Carolina (UNC) at Chapel Hill explained. “Our findings show that frequent phone checking may undermine the very skills students need to succeed in the classroom.”