Doxa's 7-domain model isn't built on trends — it's grounded in decades of peer-reviewed research from leading medical and psychology journals.
Our approach begins with a foundational insight from bioethics: you are not a collection of separate problems to solve. You are a being-in-relationship — connected across body, mind, relationships, finances, purpose, and spirit. When one dimension suffers, the ripple effects touch everything else.
This is why Doxa doesn't treat your spiritual life, physical health, finances, and relationships as separate silos. They're interconnected — and the research confirms it.
Sulmasy, D.P. (2002). A biopsychosocial-spiritual model for the care of patients at the end of life. The Gerontologist, 42(suppl_3), 24-33.
Each of Doxa's seven domains is backed by substantial evidence from peer-reviewed journals.
Relational
Decades of meta-analytic research confirm that the quality of your relationships is one of the strongest predictors of how long — and how well — you live.
Holt-Lunstad, J., Smith, T.B., & Layton, J.B. (2010). Social relationships and mortality risk: A meta-analytic review.
PLoS Medicine, 7(7), e1000316.
Meta-analysis of 148 studies (308,849 participants) found a 50% increased likelihood of survival for those with stronger social relationships (OR = 1.50, 95% CI 1.42–1.59). The effect is comparable to quitting smoking.
PubMedHolt-Lunstad, J., Smith, T.B., Baker, M., Harris, T., & Stephenson, D. (2015). Loneliness and social isolation as risk factors for mortality: A meta-analytic review.
Perspectives on Psychological Science, 10(2), 227-237.
Social isolation (OR = 1.29), loneliness (OR = 1.26), and living alone (OR = 1.32) each significantly increase mortality risk.
PubMedWang, F., Gao, Y., Han, Z., et al. (2023). Association of social isolation and loneliness with all-cause, cardiovascular and cancer mortality.
Nature Human Behaviour, 7, 1307-1319.
Meta-analysis of 90 prospective cohort studies (2,205,199 individuals) confirmed that social isolation and loneliness are associated with all-cause mortality, cardiovascular mortality, and cancer mortality.
PubMedSpiritual
A large and growing body of research connects religious involvement and spirituality to better mental health, greater well-being, and longer life.
Koenig, H.G. (2012). Religion, spirituality, and health: The research and clinical implications.
ISRN Psychiatry, 2012, 278730.
Comprehensive review finding 326 studies on well-being, of which 256 (79%) found positive associations with religiosity/spirituality. Of 444 studies on depression, 272 (61%) found inverse relationships; among the 178 most rigorous depression studies, 119 (67%) confirmed the inverse link. Of 63 methodologically rigorous mortality studies, 47 (75%) found religiosity/spirituality predicted greater longevity.
Choudhary, A.K. & Abirami, R. (2025). Spirituality and medicine: A systematic review and meta-analysis of integrative approaches to patient satisfaction, quality of life, and health outcomes.
Journal of Religion and Health.
Meta-analysis found significant effect sizes for integrating spirituality in healthcare: anxiety (0.70, 95% CI 0.50–0.90), quality of life (0.75, 95% CI 0.60–0.90), chronic disease management (0.65, 95% CI 0.50–0.80), and patient satisfaction consistently exceeding 80%.
Mental
Research shows that cultivating self-compassion and a sense of life purpose are powerful, evidence-based strategies for emotional resilience and reduced mortality.
Neff, K.D. (2023). Self-compassion: Theory, method, research, and intervention.
Annual Review of Psychology, 74, 193-218.
Comprehensive review finding self-compassion is positively associated with mastery goals and health-promoting behaviors, and negatively associated with performance goals, with small to medium effect sizes.
PubMedAlimujiang, A., Wiensch, A., Boss, J., et al. (2019). Association between life purpose and mortality among US adults older than 50 years.
JAMA Network Open, 2(5), e194270.
Study of 6,985 adults found those with the lowest sense of life purpose had significantly higher mortality risk compared to those with the highest purpose (HR = 2.43, 95% CI 1.57–3.75).
PubMedBoyle, P.A., Barnes, L.L., Buchman, A.S., & Bennett, D.A. (2009). Purpose in life is associated with mortality among community-dwelling older persons.
Psychosomatic Medicine, 71(5), 574-579.
In 1,238 older adults from the Rush Memory and Aging Project, greater purpose in life was associated with a 40% reduced risk of mortality over 5 years (HR = 0.60, 95% CI 0.42–0.87).
PubMedGilbert, P. & Procter, S. (2006). Compassionate mind training for people with high shame and self-criticism: Overview and pilot study of a group therapy approach.
Clinical Psychology & Psychotherapy, 13, 353-379.
Pilot study demonstrating that compassionate mind training can reduce shame, self-criticism, depression, anxiety, and inferiority, while increasing self-soothing ability.
Physical
Having a strong sense of purpose doesn't just improve your mindset — it measurably reduces mortality risk and promotes health-promoting behaviors including exercise and self-care.
Cohen, R., Bavishi, C., & Rozanski, A. (2016). Purpose in life and its relationship to all-cause mortality and cardiovascular events: A meta-analysis.
Psychosomatic Medicine, 78(2), 122-133.
Meta-analysis of 10 studies (136,265 participants) found that a strong sense of purpose in life was associated with a 17% reduced risk of both all-cause mortality and cardiovascular events (adjusted pooled RR = 0.83).
PubMedCox, A.E., Ullrich-French, S., Tylka, T.L., & McMahon, A.K. (2019). The roles of self-compassion, body surveillance, and body appreciation in predicting intrinsic motivation for physical activity: Cross-sectional associations, and prospective changes within a yoga context.
Body Image, 29, 110-117.
Self-compassion and body appreciation predicted intrinsic motivation for physical activity, supporting the role of self-kindness in sustaining exercise habits.
PubMedFinancial
Research establishes a clear, bidirectional relationship between financial well-being and health. Financial distress elevates depression risk, while financial stability supports both mental and physical wellness.
Ettman, C.K., Thornburg, B., Abdalla, S.M., Meiselbach, M.K., & Galea, S. (2024). Financial assets and mental health over time.
Scientific Reports (Nature), 14, Article 26188.
Adults with less than $5,000 in accrued financial assets reported over two times the odds of screening positive for depression, anxiety, and co-occurring depression and anxiety compared to those with $100,000+.
PubMedBialowolski, P., Weziak-Bialowolska, D., Lee, M.T., Chen, Y., VanderWeele, T.J., & McNeely, E. (2021). The role of financial conditions for physical and mental health: Evidence from a longitudinal survey and insurance claims data.
Social Science & Medicine, 281, 114041.
Favorable financial conditions (safety and capability) positively associated with self-reported mental and physical health, and are associated with reduced risk of depression. Financial distress predicted reduced health outcomes.
PubMedCareer
Your sense of purpose — including how meaningful you find your work — is directly linked to survival. People who feel their life has direction and meaning live significantly longer.
Cohen, R., Bavishi, C., & Rozanski, A. (2016). Purpose in life and its relationship to all-cause mortality and cardiovascular events: A meta-analysis.
Psychosomatic Medicine, 78(2), 122-133.
Meta-analysis of 10 studies (136,265 participants) confirmed that a strong sense of purpose reduces mortality and cardiovascular risk.
PubMedAlimujiang, A., Wiensch, A., Boss, J., et al. (2019). Association between life purpose and mortality among US adults older than 50 years.
JAMA Network Open, 2(5), e194270.
Adults with the lowest sense of purpose had 2.43 times the mortality risk of those with the strongest sense of purpose.
PubMedFreedom
Evidence-based behavioral change techniques — particularly motivational interviewing — consistently outperform standard treatment for overcoming harmful habits and sustaining freedom.
Lundahl, B., Moleni, T., Burke, B.L., et al. (2013). Motivational interviewing in medical care settings: A systematic review and meta-analysis of randomized controlled trials.
Patient Education and Counseling, 93(2), 157-168.
Meta-analysis found motivational interviewing was 55% more effective than standard treatment across medical care settings (OR = 1.55, 95% CI 1.40–1.71).
Frost, H., Campbell, P., Maxwell, M., et al. (2018). Effectiveness of motivational interviewing on adult behaviour change in health and social care settings: A systematic review of reviews.
PLoS ONE, 13(10), e0204890.
Umbrella review of 104 systematic reviews (including 39 meta-analyses) confirmed motivational interviewing as effective for behavior change, though evidence quality varied from low to moderate.
PubMedWhen research and faith point in the same direction, you can move forward with confidence.
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