An alternative explanation is that we have a lot of "backup capacity" such that small amounts of damage are not noticed by reasonable tests (or potentially are impossible to measure) until we reach a point where we fail to function.
We are actually all supposed to be 7 feet tall and full of muscles, we just don't know it because every last one of us has been stunted by poor diet and what not.
We are actually all supposed to be 7 feet tall and full of muscles, we just don't know it because every last one of us has been stunted by poor diet and what not.
That's my story and I'm sticking to it.