Which theory of aging proposes that the body breaks down,part by part,after years of use?

Question

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The wear-and-tear theory proposes that aging is the result of the body breaking down over time due to years of use and exposure to stressors. As the body's systems and organs become less efficient, they are unable to repair themselves and eventually fail, leading to the symptoms of aging. This theory suggests that the body is like a machine that gradually wears out with regular use, eventually leading to breakdown and malfunction.

Which Theory of Aging Proposes That the Body Breaks Down,part