These simplest life commonsense are precious knowledge among these primitive people.
Ma Lin asked them to wash their hands before and after meals, and they truly do wash their hands before and after meals.
Ma Lin asked them to drink boiled water, and they tried not to drink raw water.
He told them there were countless bacteria and small bugs in the water, some of which could cause diseases, and even if they couldn't see them, they were willing to believe.
However, Ma Lin didn't feel he was something great because of this. The primitives are naturally simple and don't understand the complexity of human nature, and Ma Lin is willing to integrate into them and maintain this good atmosphere.
He thought of Shanxi Village, where things were really bad.
Now, it takes a month's journey between each pair of villages, and it's really difficult to interact.
With such a small population, there are no hands to conduct such long-distance visits.
