Parents must intervene to stop their children overusing social media and consuming time online "like junk food", the children's commissioner has said.
In an interview with the Observer, Anne Longfield criticised the ways social media giants use to draw children into spending more time.
She said parents should be proactive in stopping their children from bingeing on the internet in the summer holidays.
Ms Longfield has launched a campaign to help parents with the issue.
She said: "It's something that every parent will talk about especially…