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  "path": "/news/2026-04-dementia-lung-exosomes-disrupt-brain.html",
  "publishedAt": "2026-04-08T18:20:03.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "The correlation between smoking and neurodegeneration is well-documented, with one study from 2011 finding that heavy smoking in midlife was associated with a greater than 100% increase in risk of dementia, Alzheimer's and vascular dementia more than two decades later. Dementia is a less-studied impact of smoking for a simple, terrible reason: It occurs later in life and smokers tend to die younger.",
  "title": "Why smoking may raise dementia risk: Lung exosomes could disrupt brain iron balance"
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