{
  "schemaVersion": 1,
  "capturedAt": "2026-10-30T05:58:56.805Z",
  "sha256": "ed328ea7abc130afd3ad1245a13fde14aad31eac6a714898bd8948fdadd584b4",
  "work": {
    "kind": "note",
    "key": "grosicki-2026",
    "type": "RDN",
    "id": "TAP-RDN-0069",
    "locale": "en",
    "path": "/research/grosicki-2026/",
    "title": "TAP reading note: Real-world effects of alcohol on heart rate, sleep, and physical activity by age and sex.",
    "description": "More alcohol than a person’s usual intake was associated with lower nocturnal RMSSD and higher resting heart rate in wearable records.",
    "rights": "© The Allostasis Project. All rights reserved. Reproduction or adaptation requires separate permission, subject to applicable legal exceptions.",
    "version": "1.0",
    "updatedAt": "2026-10-30",
    "editorial": {
      "contentType": "evidence-review",
      "reviewState": "draft",
      "reviewedAt": null,
      "reviewedVersion": null,
      "updatedAt": "2026-10-30",
      "version": "1.0",
      "byline": "team",
      "author": null,
      "reviewer": null,
      "workflow": {
        "ai": {
          "usage": "used",
          "system": "OpenAI Codex",
          "scope": "Source comparison, evidence extraction, drafting, translation and editing. The materials consulted are stated in each source scope.",
          "version": "1.0",
          "tasks": [
            "Source comparison and evidence extraction",
            "Bilingual drafting, translation and editing"
          ]
        }
      },
      "revisions": []
    },
    "original": {
      "id": "grosicki-2026",
      "title": "Real-world effects of alcohol on heart rate, sleep, and physical activity by age and sex.",
      "authors": "Grosicki GJ, Robinson AT, Joyner MJ, et al.",
      "journal": "PLOS Digital Health",
      "year": "2026",
      "url": "https://doi.org/10.1371/journal.pdig.0001284",
      "doi": "10.1371/journal.pdig.0001284",
      "pmid": "41801993"
    },
    "references": [
      {
        "id": "grosicki-2026",
        "title": "Real-world effects of alcohol on heart rate, sleep, and physical activity by age and sex.",
        "authors": "Grosicki GJ, Robinson AT, Joyner MJ, et al.",
        "journal": "PLOS Digital Health",
        "year": "2026",
        "url": "https://doi.org/10.1371/journal.pdig.0001284",
        "doi": "10.1371/journal.pdig.0001284",
        "pmid": "41801993"
      }
    ],
    "sections": [
      {
        "id": "finding",
        "title": "What the study found",
        "paragraphs": [
          "More alcohol than a person’s usual intake was associated with lower nocturnal RMSSD and higher resting heart rate in wearable records."
        ]
      },
      {
        "id": "limits",
        "title": "Scope & limitations",
        "paragraphs": [
          "20,968 WHOOP users contributing 5,109,185 person-days.",
          "Self-reported alcohol, residual confounding and selection into one commercial platform limit causal and population-wide conclusions. A within-person association does not explain every individual low reading."
        ]
      },
      {
        "id": "sample",
        "title": "Population & sample",
        "paragraphs": [
          "20,968 users; 5,109,185 person-days."
        ]
      },
      {
        "id": "exposure",
        "title": "Exposure or intervention",
        "paragraphs": [
          "Retrospective analysis of self-reported alcohol and wearable measurements, including within-person variation."
        ]
      },
      {
        "id": "outcomes",
        "title": "Outcomes",
        "paragraphs": [
          "Nocturnal RMSSD, resting heart rate, sleep and physical activity."
        ]
      },
      {
        "id": "duration",
        "title": "Time frame",
        "paragraphs": [
          "Repeated daily observations; the person-day total is not a common follow-up duration for every user."
        ]
      },
      {
        "id": "funding",
        "title": "Research funding",
        "paragraphs": [
          "Funded by WHOOP. Company-affiliated authors participated in design, data work, analysis and manuscript preparation."
        ]
      },
      {
        "id": "conflicts",
        "title": "Research conflicts of interest",
        "paragraphs": [
          "Seven authors reported WHOOP employment; six reported stock options. These commercial relationships matter when interpreting the results."
        ]
      },
      {
        "id": "basis",
        "title": "Reading scope",
        "paragraphs": [
          "Full-text methods, results, limitations and published funding/interest statements. The title uses “effects”; this note retains the observational interpretation."
        ],
        "links": [
          {
            "label": "PubMed",
            "url": "https://pubmed.ncbi.nlm.nih.gov/41801993/"
          },
          {
            "label": "Full text (PMC)",
            "url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC12970902/"
          }
        ]
      }
    ]
  }
}