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  "path": "/news/2026-04-cells-infections-boost-muscle.html",
  "publishedAt": "2026-04-21T13:00:11.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "B cells are white blood cells that form a core part of the body's adaptive immune system, enabling it to recognize specific infections, remember them, and mount a targeted response by producing antibodies. A recent study published in Cell has found that these same cells might have a role to play in maintaining high exercise performance.",
  "title": "B cells that fight infections may also boost muscle performance during exercise"
}