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suffering.social Public research by Subconscious

Adolescent mental health · United States

What changed for teenagers around 2012?

A sharp mental-health inflection appears in national data around 2011 and 2012—at roughly the same moment smartphones and social platforms became fixtures of adolescence.

The timing is evidence, not proof. Correlation cannot tell us what would have happened in the counterfactual world without social media. A causal claim requires stronger designs and explicit assumptions.

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The observed pattern

The slope changes before the debate catches up.

U.S. survey series show adolescent distress rising after a comparatively stable period. Different measures and datasets place the turn near 2011–2012; none alone isolates a cause.

Illustrative index of adolescent mental-health distress from 2005 to 2021 A relatively flat line through 2011 rises markedly after 2012. The chart is an indexed evidence summary, not a standalone dataset. 2011–2012 inflection 200520122021
Indexed evidence summary. Consult the cited source series for exact definitions and estimates.

Method preview

From an observed break to a testable counterfactual

  1. 01

    Observe

    Locate discontinuities across multiple measures, not a single dramatic chart.

  2. 02

    Compare

    Use natural experiments, staggered adoption, and credible control groups.

  3. 03

    Stress-test

    Expose ranges and calculate how conclusions move when assumptions change.

Sources & limitations

Start with the primary evidence.

  • SAMHSA, National Survey on Drug Use and Health, 2004–2021.
  • CDC, Youth Risk Behavior Surveillance System.
  • Braghieri, Levy & Makarin, American Economic Review, 2022.
  • Allcott et al., American Economic Review, 2020.

Survey wording, coverage, and reporting change over time. Mental health has many causes; platform exposure is heterogeneous; monetized burden estimates may overlap. This project is a research aid, not medical advice.