The _____ theory notes that as one ages, the collagen loses some of its elasticity and there is a hardening of the arteries of the circulatory system.

Question

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The cross-linkage theory proposes that as one ages, the proteins in the body become cross-linked, leading to tissue damage, reduced elasticity of collagen, and hardening of arteries. This is a commonly accepted theory of aging. The immune function theory and free radical theory are other theories of aging, but they are not specifically related to changes in collagen or the circulatory system. The genetic control theory proposes that genetic factors regulate the aging process, but this theory is not directly related to changes in collagen or the circulatory system.

The _____ Theory Notes That as One Ages, the Collagen