Early Ming Dynasty: Turning Clouds and Rains into New Learning Saints

Chapter 21
Zhang Yifan had no choice but to comfort them: "Actually, there is no need to be so unreasonable! Most microorganisms are harmless to the human body and are even beneficial. For example, beneficial microorganisms are at work in the fermentation process. In addition, our human body also has its own set of defense mechanisms. …”

He was talking. Believe it or not, everyone present was listening carefully, and no one spoke.

In fact, it is not easy to understand what Zhang Yifan said.It seems reasonable to say that he made it up.But when I think about it carefully, I feel confused.There is only one word to describe it: enigmatic!

"For example, our nose hairs effectively prevent dust and bad things in the air from entering the human body. If too much accumulates, the human body will expel it through sneezing..."

Hearing this example, everyone was a little dumbfounded.In their opinion, nose hair is really unsightly, and they wish they had no hair, but it still has such a function?
This was the first time they heard this statement.

"Also, even if harmful microorganisms enter our human body, our human body will have defense measures such as white blood cells. You can imagine it as an army that protects our human body and fights against invading microorganisms. One of the ways it manifests is fever... "

This was something they had never heard of before. After hearing a lot, Zhu Di, who was skeptical, couldn't help questioning: "According to what you said, is this fever a good thing for us?"

Such a conclusion somewhat subverts their worldview.To them, having a fever means being sick. How can this be a good thing?

Hearing his question, many people nodded, obviously they also had this doubt.

After hearing this, Zhang Yifan immediately turned to look at Zhu Di and said with a smile: "Some bad things are not resistant to high temperatures. When the human body has a fever, there is inflammation and white blood cells are fighting. However, each organ of our human body can tolerate a certain range of high temperatures. If it exceeds this Within the tolerance range, fever will also cause harm to the human body."

This answer seems to come full circle.However, these words just now were still too unbelievable, or inscrutable. For a moment, everyone had different expressions, and they didn't know whether they should believe it or not.
Zhang Yifan looked at them and added: "Why do we have to cook things to eat so that we don't get upset easily? In fact, this is the same reason. Use high temperatures to destroy harmful microorganisms!"

It's common sense, they all know it.However, they don't know the reason behind it. Anyway, this is how it was passed down from their ancestors.

Zhu Di still couldn't accept it completely, so he asked: "You just said that these micro... organisms can be seen with the help of tools. I don't know what kind of tools they are. Can you let us have a look too?"

Although there are examples of dust in the air, it is still not easy for them to believe that there are still microorganisms.

No matter what, seeing is believing is the most trustworthy thing.

Zhang Yifan listened, looked at him and replied: "You need to use a microscope. A light microscope can see part of the microorganisms. But this thing is not easy to make and it takes a long time to make!"

He knew that the Hooke microscope could see cells and the like, which could subvert the ancient people's cognition.He also knows how to make a Hooke microscope, but at this stage, he must first solve the problem of food and clothing, improve living conditions, and live without worries. It is not too late to do these things.

"I believe you!" Zhu Jingjing listened and expressed her position without hesitation.

She didn't need to do it, she already had a conclusion based on Zhang Yifan's words and deeds.

After Zhu Di heard this, he couldn't help but glared at her angrily: This girl has been deeply poisoned and is probably hopeless!The only way was to isolate, but in the end she even encouraged the Crown Princess to come over. There was really nothing she could do!

The Crown Princess was also shocked when she heard this, and asked in surprise: "How do you know so many things?" No matter whether it is true or not, telling so many things, even if it is false, and making it up to life, is powerful enough. !

"Haha, I only know a little bit about it!" After hearing this, Zhang Yifan immediately responded with a smile, and then said, "The topic just now went too far, let's talk about the mother."

Originally, Zhu Di still had questions to ask, but when he heard his words, he had no choice but to hold back.

The stable ladies, believe it or not, were shocked by Zhang Yifan's remarks. When they heard what he said about the mother, they all listened respectfully subconsciously.

Just listen to Zhang Yifan say to them: "When a mother gives birth, her body is in a weak state, and her immunity is weak. That is to say, the army in the human body that protects the body is weak. At this time, harmful microorganisms can easily take advantage of it. Therefore, when a mother gives birth, As well as postpartum care, that is, during the confinement period, we must pay attention to disinfection, and the mother must rest well, eat well, recover her strength, and restore her body's immunity as soon as possible."

"Young Master, what do you mean, many maternal diseases are caused by this harmful microorganism? Then how to disinfect it?" Wen Po Wang asked boldly after hearing this.

She is a professional stable mother and is responsible for delivering babies in the palace. She has seen too many examples.Of course I had doubts in my mind, so I couldn't help but ask.

Zhang Yifan nodded after hearing this and said: "Yes, objects can be sterilized by high temperature, and can be soaked in boiling water. If it is not convenient to sterilize by high temperature, you can use high-concentration alcohol for disinfection, preferably 70.00% five-proportion alcohol." It can achieve its purpose.”

They all know about boiling water, so Wang asked another question: "I don't understand this about alcohol disinfection, please give me some advice!"

After saying this, she returned the blessing.

It was obvious that she had corrected her attitude at this time.

After hearing this, Zhang Yifan immediately explained: "We have liquor. Let's distill it and purify it to a concentration of about 75 parts of alcohol in [-] parts. The disinfection effect is the best!"

Liquor was actually already available at this time.

But in ancient times, the common wine, or the wine that rich people drank, was rice wine.

Liquor did not taste good in ancient times, and it made people drunk after drinking even a little bit, so it was not liked by people.That is to say, the poor cannot afford rice wine, so they have to drink some white wine to satisfy their cravings.

In addition, high-concentration spirits would not become common until the middle and late Ming Dynasty.

At this time, most of the women, at least, believed Zhang Yifan's words.But the problem is that every word of explanation by Zhang Yifan often brings up other puzzlements, which makes people feel confused again.

Zhang Yifan obviously knew this. If he continued to explain it like this, he would probably go off topic and not know where to go. Therefore, he decisively refused to explain concepts such as distillation and concentration, and continued: "Another point is that after a baby is just born, it must Pay attention to heat preservation. It should be fine for rich families, but for ordinary people, it is best to have an incubator. Especially for babies under one month old, you must pay attention to heat preservation. This is the same for humans and animals..."

(End of this chapter)