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Evidence Sources

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Key Studies

Social Connection & Mortality

Study Sample Finding
Wang et al. 2023 2.2M people Social isolation +32% mortality
Holt-Lunstad et al. 2010 308,849 people 50% increased survival with strong ties

Love Universality

Study Sample Finding
Jankowiak & Fischer 1992 166 cultures Romantic love found in all cultures

Religious Community

Study Sample Finding
VanderWeele et al. 2016 89,708 women 20-30% lower depression, 5x lower suicide

Mechanisms

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