By Duke-NUS Medical School – Science Daily –

Researchers have uncovered a molecular “switch” that helps explain why exercise keeps aging muscles healthy. By reducing levels of a gene called DEAF1, physical activity allows older muscles to clear out damage, repair themselves, and maintain strength.

Scientists have uncovered a key reason why exercise is so effective at helping older muscles stay strong. A new study from Duke-NUS Medical School shows that physical activity can restore the natural repair systems that weaken with age, helping muscles recover and maintain function later in life.

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