In this study they didn't look at the lifespans of the mice, they looked at markers of the health of different types of tissues. A lot of the time when somethin

In this study they didn't look at the lifespans of the mice, they looked at markers of the health of different types of tissues. A lot of the time when something is about "reversing aging" it's about improving health so that organs of the old work more like those of the young or curing diseases of old age and not necessarily about increasing lifespan.