title: Core Claim: Social Connection Reduces Mortality description: Meta-analysis synthesis

Core Claim: Social Connection Reduces Mortality¶

Type: Text
Published: 2026-02-04
Added to Graph: 2026-02-04
Source: Meta-analysis synthesis

Content¶

Social connection reduces all-cause mortality by approximately 50%. This is based on a meta-analysis of 148 studies with over 300,000 participants (Holt-Lunstad et al. 2010). The effect size is comparable to quitting smoking.

CONFIDENCE: ★★★★★ (Established) SOURCES: Holt-Lunstad et al. 2010, PLoS Medicine

Knowledge Graph Impact¶

This episode created or referenced 5 relationship(s) in the knowledge graph:

• Social connection REDUCES All-cause mortality Social connection reduces all-cause mortality by approximately 50%

• Social connection BASED_ON Meta-analysis The finding about social connection reducing mortality is based on a meta-analysis

• Effect size COMPARABLE_TO Smoking cessation The effect size of social connection on mortality is comparable to quitting smoking

• Meta-analysis CONDUCTED_BY Holt-Lunstad et al. 2010 The meta-analysis was conducted by Holt-Lunstad et al. 2010

• Holt-Lunstad et al. 2010 PUBLISHED_IN PLoS Medicine Holt-Lunstad et al. 2010 study was published in PLoS Medicine

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Episode added: 2026-02-04