Outliers: The Story of Success · chapter 0 · id outliers-c0-08-the-broader-literature-on-soci

“The broader literature on social relationships and mortality supports the plausibility of the Roseto effect -- Holt-Lunstad et al. (2010) meta-analysis of 148 studies (N=308,849) found that strong social relationships increase survival likelihood by 50%.”

holdsconfidence: high⚠ extracted by pipeline, re-audit pending

Receipts

Holt-Lunstad, Smith & Layton (2010), PLoS MedicineDOI registry: valid
Individuals with stronger social relationships had a 50% increased likelihood of survival. The effect of social isolation on mortality is comparable to smoking 15 cigarettes per day.
Berkman & Syme (1979), American Journal of EpidemiologyFLAGGED: DOI not in registry
People with fewer social ties had 2-3x higher mortality over 9 years in the Alameda County Study.

This claim is a stable, citable object. If you can falsify a verdict, tell us — corrections are loud here.