Mitochondria (energy-producing organells in cells) are
critical to the cell reproduction cycle and their DNA,
different from the cell’s main DNA, is particularly
vulnerable to damage.
With aging, tissues become increasingly damaged and
dysfunctional due to cross-linkages with sugar
Metabolic product gunk called lipofuscin accumulates in
cells and inhibits their functionality.
Major theories of aging
To see details click on title of theory