We have evolved while living in fear of the leopard that stalks the night. What is the meaning of evolutionary history? We have seen life expectancy go up with good sanitation.
But is bathing with soap "good sanitation" or are we doing more harm than good, harm that happens to be masked by improvements in e.g. good sanitation?
We have seen life expectancy go up with good sanitation.
Sure, but to what extent is it causation and what extent simply correlation. Also "sanitation" covers a huge range of improvements and activities, and just because some can directly be linked to life expectancy, doesn't mean that they all can.
