"A high screen-time score, depending on the young person, can have a profound impact," an expert told Newsweek.

New research following children for more than a decade links high screen exposure before age two to accelerated brain maturation, slower decision-making, and increased anxiety by adolescence.

“That’s enough screen time for today,” you tell your kid, urging them to turn off the video-game console or iPad. As for what they should do instead, you are not quite sure. And what about you? If ...