Cited by 508Stress Responses and CortisolDeath Anxiety and Social ExclusionHealth disparities and outcomes

The DOI matches its Crossref record; 157 of the 159 references it cites were found in a registry or an index; none of the 133 sources its claims cite is checked for support yet.

Social Safety Theory: A Biologically Based Evolutionary Perspective on Life Stress, Health, and Behavior

Open access
Slavich, George M.·2020·Annual Review of Clinical Psychology

Abstract

Social Safety Theory hypothesizes that developing and maintaining friendly social bonds is a fundamental organizing principle of human behavior and that threats to social safety are a critical feature of psychological stressors that increase risk for disease. Central to this formulation is the fact that the human brain and immune system are principally designed to keep the body biologically safe, which they do by continually monitoring and responding to social, physical, and microbial threats in the environment. Because situations involving social conflict, isolation, devaluation, rejection, and exclusion historically increased risk for physical injury and infection, anticipatory neural–immune reactivity to social threat was likely highly conserved. This neurocognitive and immunologic ability for humans to symbolically represent and respond to potentially dangerous social situations is ultimately critical for survival. When sustained, however, this multilevel biological threat response can increase individuals’ risk for viral infections and several inflammation-related disease conditions that dominate present-day morbidity and mortality.

Overview

AI snapshot

Written from the paper’s full text.

TL;DR

Social Safety Theory proposes that forming and maintaining friendly social bonds is a fundamental organizing principle of human behavior, and that threats to social safety are key psychological stressors that increase disease risk. It integrates immune, neural, and neuroimmune evidence to argue that social threat engages conserved inflammatory responses that, when sustained, contribute to viral infections and inflammation-related disease.

Key findings

  • Social safety and social integration are linked to better health: a meta-analysis of 148 studies and 308,849 participants followed for an average of 7.5 years found being socially well integrated was associated with a 91% increase in odds of survival (OR = 1.91; 95% CI [1.63, 2.23]); another meta-analysis of 41 studies and 73,037 participants found lower inflammatory markers TNF-α, IL-6, CRP, and fibrinogen (Zr = −0.076; 95% CI [−0.11, −0.04]).
  • Social threat predicts mortality and morbidity: adjusted mortality odds were 1.26 for low socioeconomic status (95% CI [1.21, 1.32]), 1.26 for perceived loneliness (95% CI [1.04, 1.53]), 1.29 for social isolation (95% CI [1.06, 1.56]), and 1.32 for living alone (95% CI [1.14, 1.53]), translating to roughly 2.1 years of reduced life expectancy by age 40. Targeted rejection stressors hasten depression onset, promote suicidal ideation, alter inflammatory signaling, and accelerate biological aging as indexed by telomere length.
  • Proposed mechanisms involve four neural networks (amygdala, mentalizing, empathy, mirror neuron) and four neural–immune pathways (sympathetic nervous system, HPA axis, vagus nerve, meningeal lymphatic vessels) that enable “social signal transduction”; cytokines are described as critical mediators affecting physiology, cognition, and behavior.
  • Several moderators are proposed: genetics (e.g., OPRM1 rs1799971, IL6 −174G>C), sleep, childhood microbial environment, diet/adiposity, birth cohort, air pollution, and self-harm. For example, parental absence predicted 47% higher CRP in young adulthood for those with low infancy animal-feces exposure versus 17% lower CRP for those with high exposure; PM2.5 <12 μg/m3 was associated with a 13.6% increase in all-cause mortality (HR = 1.136; 95% CI [1.131, 1.141]).

Methods

  • Design: conceptual/theoretical review and theory-building paper; it proposes Social Safety Theory and reviews evidence for its three main tenets.
  • Data or sample: no primary sample or new empirical data are reported; it synthesizes existing literature from anthropology, psychology, sociology, epidemiology, and public health, including cited meta-analyses, cohort studies, and experimental studies.
  • Main analysis: narrative integration of prior stress theories, immune system function, social brain networks, neural–immune communication, and evidence for social safety and threat effects; no systematic review search or quality-appraisal methods are stated.

Limitations

  • Stated in the paper: stress research lacks consensus on definitions and on which social-environmental adversities are most deleterious; epidemiologic studies are not designed to discern what about social threat is most harmful; no studies have examined within-person associations between nonsuicidal self-injury, inflammation, and social safety/threat; acetaminophen is the only biologically informed strategy listed and is far from accepted; future longitudinal studies are needed.
  • Evident from the text: as a narrative review, it does not systematically search or appraise evidence or directly test the theory as a whole; causal and mechanistic claims rely on cited studies, and several proposed moderators (e.g., birth cohort, air pollution, self-harm) are presented as needing future research.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1146/annurev-clinpsy-032816-045159

Cites

157 of 157 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Verification

Claims the paper makes

104 Not checked yet · 32 Own interpretation · 10 No basis given

Verify all 133 references — free account

Show all 84 claims

  • It may state two separate claims as one. 48
  • Probably not a substantial claim. 16
  • The quote only partly states this claim. 4
62 of 62
  • The paper relies on this without support.

    Sleep plays a central role in regulating biological processes that affect social cognition, health, and behavior.

    “Sleep is a critical human behavior that plays a central role not just in everyday life but in regulating biological processes that affect social cognition, health, and behavior.”
  • The paper relies on this without support.

    The benefit-to-cost ratio of the inflammatory response is greatest when it upregulates quickly and downregulates shortly after a threat has passed.

    “Like other neural and physiological systems, the benefit-to-cost ratio of the inflammatory response is greatest when it upregulates quickly and then downregulates shortly after a threat has passed.”
  • The paper relies on this without support.

    Objective characteristics of the social environment influence the extent to which people regard their surroundings as socially safe versus threatening.

    “Because objective characteristics of the social environment influence the extent to which people generally regard their surroundings as socially safe versus threatening”
  • The paper relies on this without support.

    Humans are embedded in a series of social safety circles that independently and interactively shape experiences of social safety and threat.

    “humans are embedded in a series of social safety circles that independently and interactively shape moment-to-moment and lifelong experiences of social safety and threat (see Figure 2).”
  • The paper relies on this without support.

    Over millennia, the cellular self evolved to monitor its surroundings, detect threats, and produce anticipatory biobehavioral responses that gave the greatest adaptive advantage.

    “which evolved over millennia to monitor the surrounding environment, detect potential threats, and mount anticipatory biobehavioral responses that conferred the greatest adaptive advantage.”
5 of 5

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Citations

Cites

Show all 159 references

Research works printed but not linked: 14

  1. Allbutt C., 1895, Contemp. Rev., 67, 210
  2. Babey SH, 2019, School Discipline Practices Associated with Adolescent School Connectedness and Engagement
  3. Bernard C., 1865, Introduction à L'étude de la Médecine Expérimentale
  4. Carver CS, 1999, Handbook of Personality, 553
  5. Clark DA, 1999, Scientific Foundations of Cognitive Theory of Depression
  6. Darwin CR., 1859, On the Origin of Species
  7. 10.2307/j.ctvc77f0d · DOI · Paper page
  8. OECD (Organ. Econ. Co-operation Dev.), 2011, Doing Better for Families
  9. Reid BM, 2019, Brain Behav. Immun
  10. Selye H., 1976, The Stress of Life
  11. Slavich GM., 2020, The Oxford Handbook of Stress and Mental Health, 519
  12. UNICEF, 2014, Hidden in Plain Sight: A Statistical Analysis of Violence Against Children
  13. Weiss JM, 1985, Stress and Coping, 93
  14. Zaki J., 2019, The War for Kindness: Building Empathy in a Fractured World

Cited by

Sorted by citations

Items 501–508 of 508

Metadata

Authors
Slavich, G. M.
Affiliations
University of California, Los Angeles (US)
Corresponding author
Slavich, George M.
Venue
Annual Review of Clinical Psychology
Published
2020-05-07
Volume
16
Issue
1
Pages
265-295
ISSN
  • 1548-5943 (ISSN-L)
  • 1548-5951
OpenAlex
W3010515129
Cited by
502
References
159
Citations by year
2026: 130 · 2025: 90 · 2024: 81 · 2023: 71 · 2022: 57 · 2021: 49 · 2020: 19
FWCI
5.10
Type
journal article
Language
en
Open access
Locations
  • Annual Review of Clinical Psychology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Alliance for Research on Schizophrenia and Depression (K08 MH103443, 23958)
  • National Institutes of Health (23958)
  • National Institute of Mental Health (K08MH103443)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Social Sciences › Psychology › Social Psychology › Death Anxiety and Social Exclusion
  • Social Sciences › Health › Health disparities and outcomes
Keywords
social bonds, social danger, psychological stress, neuroimmune interactions, inflammation, viral infection, social rejection, social isolation, evolutionary psychology, disease risk, threat response
MeSH terms
Biological Evolution, Humans, Inflammation, Psychological Theory, Safety, Social Behavior, Stress, Psychological

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

A language model drew the claims from the paper on 2026-10-08, under version 3 of the claim definition (model deepseek-v4.1-flash, prompt extract-v3).

A second model labelled each claim on 2026-10-08 (model jev-1.13-20260917, definition revision gold-guideline-v0.2).

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review