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31 - Relationships and Physical Health

Published online by Cambridge University Press:  09 February 2026

By
Julianne Holt-Lunstad
Edited by
Anita L. Vangelisti ,
Daniel Perlman  and
Susan Sprecher
Anita L. Vangelisti
Affiliation:
University of Texas, Austin
Daniel Perlman
Affiliation:
University of North Carolina, Greensboro
Susan Sprecher
Affiliation:
Illinois State University
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Summary

Social relationships are not only linked to emotional well-being, but also significantly associated with physical health. Reviewing the epidemiological and experimental body of research reveals evidence of directional and potentially causal associations between social connection and health and longevity. This is consistent with theoretical approaches to social relationships including attachment, social baseline, social network, and social support theory, all of which identify social relationships as vital to health and well-being. Theoretical models further conceptualize how it is that social relationships influence health. The growing scientific evidence documents some of the biological and behavioral pathways involved. While the evidence on the associations between social relationships and health is robust, the literature is uneven pointing to the need for further research on the complex nature of relationship quality and tech-based social connection.

Keywords

social relationshipssocial connectionsocial supporthealthmortality

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The Cambridge Handbook of Personal Relationships , pp. 652 - 676
Publisher: Cambridge University Press
Print publication year: 2026

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