Asked what all the scrolling had done to her most, one young woman did not say sad. She said angry, more or less all the time.

For a child who finds face to face conversation frightening, a game where they talk to friends while doing something else may be the only place they socialise at all. Worth noticing before you count the hours.

There is a rough ladder for tech overuse. Build a schedule together with some outside control at first, add substitutes once the person can stop for a while, then more intensive care, and residential only when someone is entirely taken over by it.

Quiet room, clear desk, phone in a drawer, and you are still nowhere near the work. When the outside distractions go, the restlessness does not leave with them. It moves inside.