http://www.sciencedaily.com/releases/2015/05/150526085138.htm
Source: University of Tsukuba
“These findings reveal that, contrary to the mitochondrial theory of aging, epigenetic regulation controls age-associated respiration defects in human fibroblast cell lines. Can epigenetic regulation also control aging in humans? That theory remains to be tested, and if proven, could result in glycine supplements giving our older population a new lease of life.”
“Epigenetic regulation refers to changes, such as the addition of chemical structures or proteins, which alter the physical structure of the DNA, resulting in genes turning on or off.”