Biology of Aging by National Institute of Aging - HTML preview
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C
become stable by reacting with neighboring
molecule “C”; and so on. This process repeats
itself until one of the molecules becomes stable
by breaking or rearranging itself, instead of
passing the instability on to another molecule.
Some free radicals are beneficial. The
immune system, for instance, uses oxygen free
radicals to destroy bacteria and other harmful
organisms. Oxidation and its by-products also
B