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Unformatted text preview: Free Radicals Theory The oxygen paradox Need it to live Can damage cells Molecules with unpaired electron, free energy, bond with other molecules Can damage tissues, other molecules Caused by normal cell metabolism Musculoskeletal system Muscle and bone content decrease Can decrease 50% by age 80 Age 20+ Bones lose more cells than are replaced Lose hardness and density *osteo-bone* *porosis- porous; spongy* Sensory changes Taste Taste buds decline in number & decrease in size Less sensitivity to sweet & salty...
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- Spring '11