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    "story_id": "mp-2026-08-04-014",
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    "headline": "The Abdomen Added a Small Clue to Brain Age",
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    "dek": "CT-derived fat and liver markers explained a modest extra share of MRI brain-age variation in women.",
    "summary": "CT-derived fat and liver markers explained a modest extra share of MRI brain-age variation in women.",
    "body_text": "A retrospective screening cohort included 1,280 women who had both abdominal CT and brain MRI. After adjustment for age, body-mass index, blood markers and health behaviors, a higher abdominal fat ratio was associated with an older MRI-derived brain-age gap, while a higher liver-to-spleen attenuation ratio was associated with a younger gap. Both measures retained independent associations and added modest explanatory value beyond clinical covariates. The study is cross-sectional and associative; it does not show that changing either CT marker will alter brain aging.",
    "why_it_matters": "CT-derived fat and liver markers explained a modest extra share of MRI brain-age variation in women.",
    "limitations": [
      "The study is cross-sectional and associative; it does not show that changing either CT marker will alter brain aging."
    ],
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    "first_published_at": "2026-08-04T09:00:00.000-04:00",
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        "qualification": "The study is cross-sectional and associative; it does not show that changing either CT marker will alter brain aging."
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    "tags": [
      "brain aging",
      "metabolism",
      "medical imaging"
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      "source_id": "source-2026-08-04-014",
      "title": "Frontiers in Aging Neuroscience: abdominal CT phenotypes and brain age",
      "publisher": "Frontiers",
      "url": "https://doi.org/10.3389/fnagi.2026.1893253",
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      "accessed_at": "2026-08-04T08:29:02.827-04:00",
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    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
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    "title": "The Abdomen Added a Small Clue to Brain Age",
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