Also known as: community, social interaction, relationships
Latest evidence update: 2026-05-04
Strongest in Recency (92). Held back by Study quality (71).
Solid mix of RCTs with some methodological gaps.
Confirmed across many independent studies with significant findings.
Tens of thousands of participants pooled across studies.
Studies agree on direction of effect.
Most studies are recent (last 2-3 years).
Areas where research points to a consistent direction of effect. The strength of evidence is graded; the size of the effect is not quantified.
Regular meaningful social interaction is one of the strongest predictors of longevity and mental health.
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Dance-based mind-motor activities are significantly associated with improved lower body strength in healthy older adults.
Primary community health care nurses significantly reduced hospitalizations compared with medical practitioners.
Multidomain interventions delivered during hospitalization showed borderline significant improvement in activities of daily living (ADLs) in hospitalized older patients.
Activity-based home rehabilitation interventions produced a small improvement in basic activities of daily living (BADL) in community-dwelling older adults with low physical performance (SMD 0.29, 95% CI 0.17 to 0.41).
Home visits by trained community members reduced neonatal mortality by 12% according to a meta-analysis of four cluster-randomised controlled trials in Ghana and south Asia.