{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T22:21:36Z","timestamp":1791238896176,"version":"4.1.0"},"reference-count":103,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2025,8,1]],"date-time":"2025-08-01T00:00:00Z","timestamp":1754006400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Psychiatry"],"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Flourishing can be defined as the experience of life going well, a combination of feeling good and functioning effectively. High-quality relationships are essential to flourishing and long-term health. Physiological interdependence\u2014such as synchronization of autonomic and endocrine systems\u2014has been proposed as a mechanism supporting emotion regulation and social bonding.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This scoping review maps the existing literature on physiological attunement in adult dyadic relationships. The review protocol was registered on the Open Science Framework (<jats:uri>https:\/\/osf.io\/295ge\/<\/jats:uri>) and followed JBI methodology for scoping reviews. PubMed and Scopus databases were searched. Eligible studies were original, quantitative, peer-reviewed articles published in English that examined physiological attunement in adult human dyads. Two reviewers independently screened and selected the studies.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 62 studies were included. Attunement was observed in romantic partners, friends, strangers, and groups, involving heart rate, heart rate variability, skin conductance, respiration, cortisol, and alpha-amylase. Physiological attunement was shaped by relational context, emotional tone, individual traits (e.g., empathy, attachment style), and interaction features (e.g., touch, conflict, cooperation). While often linked to satisfaction, intimacy, and co-regulation, synchrony also appeared in distress contexts, sometimes reflecting stress contagion or co-dysregulation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Physiological attunement appears to be a context-sensitive process that may support or hinder wellbeing. It may represent a key biobehavioral pathway linking relationships to flourishing.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fpsyt.2025.1614379","type":"journal-article","created":{"date-parts":[[2025,8,1]],"date-time":"2025-08-01T05:34:05Z","timestamp":1754026445000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":9,"title":["Physiological attunement and flourishing: understanding the influence of relationships on health"],"prefix":"10.3389","volume":"16","author":[{"suffix":"Jr.","given":"Marco A. 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