A study from the USA’s National Institutes of Health has confirmed excessive screen time irreversibly affects children’s brains.

Preliminary results of the study have shown kids who spend more than two hours in front of a screen every day score lower on both language and thinking tests, which is worrying given the average teenager spends up to 6 hours a day on their phone or tablet.

Though researchers caution we cannot draw definitive conclusions from this finding, some scientists are already recommending parents avoid digital media use altogether for children under 18 months.