Peter Attia· MD
the primary outcomes the things that we do our statistics on are uh the proportional Hazard that is the risk of death over the whole lifespan which the closest easily understood term is the median lifespan it's not quite correct statistically but nearly always it's a good shortcut to see this extended the median lifespan by 20% or 5% or whatever the median lifespan is the age at which half the mice have died and half are still alive