The claim that exercise accelerates aging and shortens life expectancy is refuted by scientific literature, which consistently demonstrates that regular physical activity reduces oxidative stress, protects vascular function, and promotes a longer healthspan and lifespan.
The claim states that exercise accelerates the Hayflick limit and shortens life expectancy. The retrieved papers consistently show that exercise has protective, anti-aging effects, reduces oxidative stress, improves vascular and metabolic function, and promotes healthy aging or prolongs lifespan (e.g., papers 0, 1, 2, 6). None of the provided papers support the claim that exercise shortens life expectancy; therefore, the balance of evidence clearly refutes the claim.