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  "path": "/news/2026-05-men-smaller-atrial-fibrillation-heart.html",
  "publishedAt": "2026-05-21T05:00:10.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "A number of previous studies have shown that young male endurance athletes and young men in general with high fitness levels appear to have an increased risk of developing atrial fibrillation later in life compared to non-athletes and those with low fitness levels. But to what extent is this true?",
  "title": "Very fit men may face smaller atrial fibrillation risk than feared, with heart benefits growing over time"
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