browse by worry
Screens & short-sightedness
Screen habits, rising myopia, and the outdoor-time evidence, without judgement.
Screens
Why does my child sit so close to the screen?
Usually harmless, occasionally a clue. How to tell which one you are seeing.
Screens
Why so many children are short-sighted now, and what actually helps
More children need glasses than ever. What drives it, and the one habit with real evidence behind it.
Screens
The 20-20-20 rule: screen breaks that actually happen
Every 20 minutes, 20 feet, 20 seconds. What it can and cannot do, and how to make breaks happen.
the short version, every week
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@drchanliyen