Also, my understanding is that a 25 % increase in median life span would bring us up to 100, which would mean a reduction of mortality at very old ages too. (fightaging.org)
Mice from which senescent cells have been removed had increased median life span and improved health, researchers reported in Nature in February (SN: 3/5/16, p. 8). (sciencenews.org)
Combined with rapamycin, metformin (teal) boosted median life span in both sexes about 23 percent, but the result wasn't statistically different from life span boosts in mice given rapamycin alone in previous studies. (sciencenews.org)