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Sprint or marathon? Aging muscle stem cells shift from rapid repair to long-term survival
- January 31, 2026 at 5:20 PM
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Aging muscles heal more slowly after injury—a frustrating reality familiar to many older adults. A UCLA study conducted in mice reveals an unexpected cause: Stem cells in aged muscle accumulate higher levels of a protein that slows their ability to activate and repair tissue, but helps the cells survive longer in the harsh environment of aging tissue.
Originally published at Phys.org