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  "path": "/news/2026-03-cannabis-tobacco-linked-smaller-brain.html",
  "publishedAt": "2026-03-31T09:40:03.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "Cannabis and tobacco—whether used on their own or together—can affect the brain's structure. A recent study involving systematic review and meta-analysis of more than 103 studies found that both substances are linked to reduced volumes in specific brain regions.",
  "title": "Cannabis and tobacco use linked to smaller brain volume"
}