Wear And Tear Theory Essay

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Recommended: Explain theories of ageing

After reading all the biological theories of aging, I think the “Wear and Tear Theory” makes the most sense to me. The theory posits that there is a limit to the human life expectancy and that little can be done to push the figure upward. I do believe it’s true in my opinion. The wear and tear theory believes the effect of aging are caused by damage done to cells and body systems over time. Even though body cells die and replaced every day except the nerve cells of the brain, a range of things can damage the body such as exposure to radiation, toxins and ultraviolet light. And when the body metabolizes oxygen, free radicals are produce and can cause damage to cell and body tissue. The more the body sustains damage the more those new cells function

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