Theories of Aging
flowchart
A(Theories of Aging)-->B(Programmed Theories)-->D(Programmed Longevity)
A-->C(Error Theories)-->M(Wear and Tear)
B-->E(Endocrine)
Why Would Aging Be Programmed into Our Genes?
Factor of evolution; need to procreate
Genetic Preprogramming Theory of Aging
Telomere length reduces every time a cell divides Telomere length = good marker of biological age
built in time limit for reproduction of cells
”our longevity is primarily determined at the moment of conception and is largely reliant on our parents and their genes”
Wear and Tear Theory of Aging / Deterioration Theory / Fundamental Limitation Theory
aging is caused by progressive damage to cells and body systems with time and use, mechanical functions decline
Disengagement Theory of Aging
Activity Theory of Aging
Jin K. (2010). Modern Biological Theories of Aging. Aging and disease, 1(2), 72–74.