{
  "abstract": "Light supports circadian regulation and is associated with non-communicable diseases, yet ocular exposure patterns remain poorly understood. We recruited 191 adults across nine sites in seven countries, combining diaries and contextual reports with near-eye (141 participants; 816 participant-days) and complementary chest-level measurements (154 participants; 902 participant-days). In near-eye analyses, only 24.0% of recorded daytime minutes met the recommendation of at least 250 lx melanopic equivalent daylight illuminance; 63.3% of pre-sleep and 87.7% of bedside sleep-environment minutes met their respective limits. Variation among people and days within sites exceeded that among sites (ratio 1.99; 95%-CI, 1.29-4.77). In hourly models, light source and setting contributed the largest shares of fitted variation after time of day. Site-average outdoor exposure was 9.35 times that while awake at home (95%-CI, 6.95-12.59; 714.2 versus 76.4 lx). This baseline identifies a daytime exposure gap and supports testing interventions in everyday settings to improve light exposure and health.",
  "abstract_shown": true,
  "affiliations": [
    "Department Health and Sports Sciences, TUM School of Medicine and Health, Chronobiology & Health, Technical University of Munich, Munich, Germany"
  ],
  "article_type": "New results",
  "arxiv": null,
  "author_total": 28,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "J. Zauner"
    },
    {
      "name": "A. Didikoglu"
    },
    {
      "name": "S. Aerts"
    },
    {
      "name": "G. K. Agbeshie"
    },
    {
      "name": "K. O. Akuffo"
    },
    {
      "name": "S. G. Akgun"
    },
    {
      "name": "S. N. Aydin"
    },
    {
      "name": "D. Baeza Moyano"
    },
    {
      "name": "D. Boesten"
    },
    {
      "name": "J. F. B. Bolte"
    },
    {
      "name": "K. Broszio"
    },
    {
      "name": "G. Cantarero Garcia"
    },
    {
      "name": "R. A. Gonzalez Lezcano"
    },
    {
      "name": "C. Guidolin"
    },
    {
      "name": "S. Hilden"
    },
    {
      "name": "N. Hogervorst"
    },
    {
      "name": "A. Jansen"
    },
    {
      "name": "Z. Kayar"
    },
    {
      "name": "S. Källberg"
    },
    {
      "name": "S. Lee"
    },
    {
      "name": "S. Melero Tur"
    },
    {
      "name": "M. Nilsson Tengelin"
    },
    {
      "name": "M. C. Perez Gutierrez"
    },
    {
      "name": "A. Sancho-Salas"
    },
    {
      "name": "O. Stefani"
    },
    {
      "name": "I. Svensson"
    },
    {
      "name": "H. von-Breymann"
    },
    {
      "name": "M. Spitschan"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8g895znexw57t.bib",
  "cited_by": 0,
  "doi": "10.64898/2026.06.04.730226",
  "fulltext_url": "https://www.biorxiv.org/content/10.64898/2026.06.04.730226v3.full",
  "id": "8g895znexw57t",
  "issns": [],
  "landing_url": "https://www.biorxiv.org/content/10.64898/2026.06.04.730226v3",
  "language": null,
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "biorxiv",
      "physiology"
    ],
    [
      "openalex",
      "2807|Circadian rhythm and melatonin"
    ]
  ],
  "openalex": "W7164040237",
  "pdf_url": "https://www.biorxiv.org/content/10.64898/2026.06.04.730226v3.full.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-06-04",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8g895znexw57t.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:24:12Z",
      "native_id": "10.64898/2026.06.04.730226",
      "source": "biorxiv",
      "url": "https://www.biorxiv.org/content/10.64898/2026.06.04.730226v3"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "biorxiv:physiology",
      "subfield": "physiology"
    }
  ],
  "title": "The health-relevant architecture of the everyday light exposome",
  "title_text": "The health-relevant architecture of the everyday light exposome",
  "type": "preprint",
  "updated_at": "2026-10-30T12:24:12Z",
  "url": "https://research.draconitic.com/paper/8g895znexw57t",
  "venue": "bioRxiv",
  "versions": []
}