damaged DNA malformed junk proteins Damage-Based Theories of Aging http://www.senescence.info/causes_of_aging.html full ESSAY on aging What Causes Aging? Damage-Based Theories of Aging http://www.senescence.info/causes_of_aging.html Damage-Based Theories of Aging http://www.senescence.info/causes_of_aging.html aging as accumulated damage Teorías del envejecimiento