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How Does Follistatin Affect Aging? The Link to Muscle, Metabolism, and Longevity

In recent studies, researchers found that manipulating follistatin levels in mice can lead to a dramatic increase in muscle mass and may even extend lifespan. This powerful protein has captured the attention of the anti-aging community, raising the question: **how does follistatin affect aging?** It does so primarily by counteracting age-related muscle loss and influencing metabolic health.