Aging Theories Aging Theories Biological Theories of Aging Damage or Error (Based) Theory of Aging Damage/Errors/Waste Accumulation Theories of Aging – General Formulations Free Radical Theory of Aging Glycation And Aging | crosslinking theory of aging Methylation And Aging | crosslinking theory of aging Theory of Aging: Chronic or Excess Inflammation Damage | Inflammaging Theory of Aging: DNA Damage Aging Theory: Depletion of Cellular Energy – Mitochondria Damage Adult (Somatic) Stem Cell (SSC) Theory of Aging Extrinsic (Environmental) Causes of Aging Programmed Epigenomic Theory of Aging Aging Theory: The Genetic Clock Aging Theory: Immune System Compromise Hormonal Theory of Aging Aging Theory: Neurological Degeneration Evolutionary Theories of Aging and Longevity Biomarker of Cellular Senescence Replicative Senescence Aging Theory: Lipofuscin Accumulation Non-Molecular/Cellular Theories of Aging Rate of Living Theory of Aging Inter-Relationships of Aging Theories Non-Biological Theories Of Aging Reliability Theory of Aging The Thermodynamic Point of View of Aging