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As people age, muscles naturally lose mass and strength, a condition known as sarcopenia. The decline can make everyday activities harder and increases the risk of falls, disability, and early death. At the moment, the best defense is regular exercise throughout our lives, as effective treatments to slow or prevent muscle atrophy are limited. Progress has been slowed in part because in most vertebrates, aging unfolds over many years, making it difficult for biomedical researchers to study quickly in the laboratory.

Source: https://medicalxpress.com/news/2026-02- ... genic.html