Heritability clouds screen-harm claims

Updated: 2025.08.18 6M ago 2 sources
Because twin studies show genetic overlap, causal blame on screen-time weakens. Robust heritability of social media use and genetic correlations with well-being/anxiety mean observed harms may reflect shared predispositions, demanding higher evidentiary standards for causal regulation. — This reframes legal and policy arguments about youth online safety, platform liability, and school/device restrictions by elevating confounding and individualized risk over blanket causation claims.

Sources

Twin studies data and the link between social media and well-being
Tyler Cowen 2025.08.18 100% relevant
The cited twin study finds small phenotypic links and that 80–90% of the overlap between SMU and WB/ADS is genetic.
How Social Media Shortens Your Life
Gurwinder 2025.08.03 75% relevant
This essay advances a causal claim that social media directly distorts time perception and erodes memory, pushing against the heritability-based skepticism of screen harms and thus informing the evidentiary debate over regulating youth/social platform use.
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