{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,30]],"date-time":"2026-10-30T16:47:39Z","timestamp":1793378859374,"version":"4.5.0"},"reference-count":78,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T00:00:00Z","timestamp":1777334400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T00:00:00Z","timestamp":1777334400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"name":"Max Planck Institute for Biological Cybernetics"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Curr Psychiatry Rep"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose of Review<\/jats:title>\n                    <jats:p>Light is a fundamental environmental signal that shapes human physiology, behaviour, and mental health. Beyond vision, light exposure regulates circadian rhythms, sleep, neuroendocrine function, arousal, and brain circuits implicated in emotional regulation. This review synthesizes recent evidence linking light exposure to mental health and argues that light should be conceptualized as a core, modifiable component of the mental health exposome \u2013\u00a0the cumulative, dynamic set of environmental influences shaping mental health across the lifespan.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Recent Findings<\/jats:title>\n                    <jats:p>Recent randomized controlled trials using light therapy, large-scale epidemiological studies, and neurophysiological investigations demonstrate that habitual patterns of daytime and nighttime light exposure are associated with a broad range of mental health outcomes. Higher daytime light exposure is generally associated with better mood and lower depressive symptomatology, whereas greater exposure to light at night is linked to increased risk of depression, anxiety, and sleep disturbance. Advances in wearable light measurement and digital phenotyping now enable precise characterization of individual light environments, supporting observational studies and improving dose verification in light-based interventions. Emerging neurobiological evidence further suggests that light can influence affective brain circuits through pathways that extend beyond sleep and circadian regulation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Summary<\/jats:title>\n                    <jats:p>Together, converging evidence positions light exposure as a biologically potent and highly modifiable determinant of mental health operating across multiple temporal scales, from acute alerting effects to longer-term circadian and behavioural adaptation. Conceptual challenges remain, including bidirectionality between light exposure and mental health and limitations in causal inference. Nevertheless, improved measurement technologies and personalized, just-in-time intervention strategies open new opportunities for integrating light exposure into psychiatric research, prevention, and clinical practice.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s11920-026-01671-7","type":"journal-article","created":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T06:53:33Z","timestamp":1777359213000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Light Exposure as a Modifiable Determinant of Mental Health"],"prefix":"10.1007","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8572-9268","authenticated-orcid":false,"given":"Manuel","family":"Spitschan","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2171-4566","authenticated-orcid":false,"given":"Johannes","family":"Zauner","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,4,28]]},"reference":[{"key":"1671_CR1","doi-asserted-by":"publisher","first-page":"12","DOI":"10.1038\/s44323-025-00029-1","volume":"2","author":"D Stewart","year":"2025","unstructured":"Stewart D, Albrecht U. 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Travel reimbursements: Daimler und Benz Stiftung.\n                      Patents\n                      : Named on European Patent Application EP23159999.4A (\u201cSystem and method for corneal-plane physiologically-relevant light logging with an application to personalized light interventions related to health and well-being\u201d). M.S. declares no influence of the disclosed roles or relationships on the work presented herein. The funders had no role in study design, data collection and analysis, decision to publish or preparation of the manuscript.J.Z. declares the following potential conflicts of interest in the past five years (2021\u20132025).\n                      Academic roles\n                      : Member of Joint Technical Committee 20 (JTC20) of the International Commission on Illumination (CIE); Member of Research Data Alliance Working Group Optical Radiation and Visual Experience Data; Speaker of group 2 (melanopic effects of light) of the Technical Scientific Committee (TWA) of the German Society of Lighting Technology and Design (LiTG).\n                      Remunerated roles\n                      : Examiner, Swiss Lighting Society; Teacher, LiTG; Teacher, University of Applied Sciences, Munich, Teacher, Technical University of Applied Sciences, Rosenheim. Associated partner,\u00a03lpi\u00a0lighting design\u2009+\u2009engineering, Munich. Tool- and 3D-model design, Zumtobel Lighting GmbH; Course design, University of Applied Sciences, Munich & Virtual University Bavaria.\n                      Honoraria for talks\n                      : Received honoraria from LiTG; Lamilux (Heinrich Strunz GmbH); Robert-Bosch Hospital Stuttgart; Ergotopia GmbH; German statutory accident insurance institution for the administrative sector (VBG); BRIXEN CULTUR, Italy; KITEO GmbH & Co.KG; University of Applied Sciences Augsburg. Travel reimbursements: Daimler und Benz Stiftung.\n                      Patents\n                      : Together with\u00a03lpi\u00a0holds a design patent for non-visually optimized luminaire (No 008194021\u20130001 through -0006) at the European Union Intellectual property office.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"24"}}