The issue is not just how much time teens spend with screens. It is how digital media becomes woven into ordinary activities: studying, resting, coping, connecting, comparing, waiting, and going to sleep.

Screen time still matters, of course. But time alone does not tell us enough. What seems to matter just as much, and perhaps more, is how teens are using digital media, what they are using it for, and what it is beginning to replace.

Teens are not simply going online. Many are checking their devices automatically, using them to manage boredom or discomfort, monitoring social feedback, comparing themselves to others, and staying connected at times when they should be resting.