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Source-led data library

Statistics for more careful conversations about phone use.

This library collects primary-source statistics and research summaries about screen time, social media, problematic phone use, and gratitude interventions. Every page identifies the population, measurement, source, and review date.

Reviewed July 26, 2026 · Next scheduled review: July 2027

Gratitude research

What meta-analyses say about the size and limits of gratitude-intervention effects.

How to use this library

Do not treat one country, age group, survey question, or study design as a universal statement about every person. Where the evidence is observational, we describe associations rather than causes. Statistics pages are educational resources, not medical advice.