Programmed Cell Death Theory of Aging
The physiological theories focus on a particular mechanism of aging for example the role of reactive oxygen species in damaging various components of the cell as proposed by Denham Harman in his oxidative theory of aging. For example cancer cells do not die the way normal cells do at the end of their life cycle. Toxins Free Full Text Programmed Cell Death Like And Accompanying Release Of Microcystin In Freshwater Bloom Forming Cyanobacterium Microcystis From Identification To Ecological Relevance Html Immunological theory A programmed decline in the immune system leads to increased vulnerability to infectious disease aging and eventual death. . This would require identification of a molecular target involved in cell senescence organism aging and diseases of aging. This interpretation implies that aging is adaptive ie favored by natural selection in terms of supra-individual natural selection and programmed ie genetically determined and mod