"I don't know if the development of brain cells can rejuvenate and rejuvenate!" Li Naixin said: "But the reason why my brain cells can be developed is because of the result of cultivation!"

Hearing Li Naixin's words for the rest of her life, Elusa was silent! She thought to herself: "It turns out that I am preconceived! I have been committed to the research of 'brain cell development', and I feel the strength of the human body after the development of brain cells, so I mistakenly thought that it was the result of the increase in the use of brain cells!"

While Elusa speculated that Li Naixin's appearance did not match her actual age, Wendy was even more surprised and shouted, "What? You, you are already 170 years old?

"If you had asked me that before, I really wouldn't have had strong evidence to answer you! However, now that I am also a well-read person! How can I not know the reason?" Li Naixin said: "The longest-lived person in the world comes from China. According to the Guinness Book of World Records, the longest-lived person is Li Qingyuan, a Chinese longevity qigong health practitioner, who was born in the 18th year of the Kangxi reign of the Qing Dynasty and died in the 24th year of the Republic of China (1679-1935) at the age of 256. ”

According to Hayflick L, a well-known aging research expert in the United States, the lifespan of human embryonic lung fibroblasts is 50 generations, and the new cells produced by each division can survive for 2.4 years, and then die and continue to divide the next time, multiplying the two numbers to calculate that the human life span is 120 years.

In addition, according to the observation of the lifespan of a variety of animals, the French naturalist Buffon summed up the basic formula that the lifespan of a species is 5~7 times that of its growth period! If the growth and development period of human beings is calculated at the age of 18, the life expectancy of human beings is 126 years old according to the calculation of the maximum of 7 times. ”

"And I, a senior monk, am I too much to live to be 170 years old now?"

"Hard, are you really my grandfather?" said Wendy thoughtfully.

"Why don't you believe it?" Li Naixin smiled and said, "If I weren't for your grandfather, I wouldn't care about your!

As soon as Li Naixin said this, Wendy believed Li Tian's words even more! Because just as Li Naixin said, since he came back that day, he went to the library every day as soon as it opened, and then refused to come out until the library closed, let alone eat in the middle! He didn't even go to the toilet once.

"Well, but why did my mother never come to me?" Wendy retorted, with some resistance.

"It's not your society's fault!" Li Naixin said: "What else is high-quality birth? Listen to your mother's meaning, your genes are also mixed with the basics of what singers, which causes your mother to directly lose the only most favorable evidence to confirm the relationship with you." ”

"I've done it all! You're still not convinced, would you believe your mother running to you and saying that she is your real parent?"

"Yes!" Wendy couldn't help but fall into deep thought.

"So what are we going to do now?"

Suddenly, Li Ming, who had no hunger in his stomach, asked Zhu Rongrong.

"What are you doing? Of course I'm trying to make money!" Zhu Rongrong said angrily: "Are you going to eat Bigu Dan every day in the future?"

Looking at Zhu Rongrong's fierce appearance, Li Ming knew that she was handing over how to survive in this world, so not only did he not think that Zhu Rongrong at this time was hateful, but he felt that she was more cute at this time. So, he smiled and said, "Then how should we make money?"

"Look at your hippie smiling face, go, come me!" Zhu Rongrong turned around and said as she walked: "In the center of every city, there will be a philistine, where there will be all kinds of jobs and tasks for us to choose from. ”

"The people who work for the philistines are called: the toothymen.

At first, it was because the ethnic minorities in the distant grasslands transported their horses to the Central Plains for sale. This requires a middleman between the buyer and the seller to watch the price of the horse, so that the middleman of the horse exchange, the 'puppet', emerges.

At that time, the horse's age and health were determined by the horse's teeth. Therefore, '䩵侩' is also called 'tooth 侩'.

And because these middlemen who negotiate between buyers and sellers rely on playing tricks to eat, more people prefer to call them "tooth wedges".

Later, due to the continuous growth of this industry, those intermediaries who came alone and were independent and begged for a life alone were called: Yaren or Yalang; The boss who forms a certain scale and establishes a commercial bank is called a tooth merchant.

Later, they were involved in more and more fields, appearing in almost all walks of life; As a result, they have another elegant name: brokers. ”

"See?" As she spoke, Zhu Rongrong pointed to a group of uneven buildings not far away and said, "The magnificent building on the left is the City Lord's Mansion; The commercial street on the right is the 'Yu Market', which is the 'Tooth Market'!"

Before they came to Yoshi, they found that there were more and more people on the road. There were a lot of people in the crowd, both mortals and monks, and it was clear from their dresses that they came from all walks of life.

Those who were poorly dressed, even tattered, walked to the corners farther away from the city lord's mansion, where most of them were 'tooth shops' who recruited long-term and short-term workers for the city's shops, the wealthy, and the surrounding families; From there, to the city lord's mansion, there are all kinds of worldly trading markets; On the side of the City Lord's Mansion, it is a task that is more difficult in the secular world; Coming to the City Lord's Mansion is the work and task required for Xiuzhen.

After Zhu Rongrong gave Li Ming a brief introduction to the situation here, Li Ming thought for a moment and said, "I don't lack money for cultivating the real realm now, why don't we find some secular tasks first?"

"Puff~"

Zhu Rongrong couldn't help laughing: "Senior Brother Ming, are you stupid? I really don't know how you live so big in your world? Don't you know that currencies can be exchanged with each other?"

"Ah~ can it still be like this?" Li Ming suddenly felt that his face was hot. He had been in a state of autism before, but after returning to normal, when he was studying in Fudan, the money Qin Lan gave him was also exchanged. He had not studied economics, let alone experienced this, so how could he know that currency was exchangeable with each other?

"You don't want to think about it: in the known Zichen Continent, there are a total of seven empires. Among the seven empires, the Luo Gu Empire was the weakest. Even so, the Luo Gu Empire had 107 vassal states. Since these 107 vassal states all belonged to the Luo Gu Empire, the trade between them was naturally very close, so the significance of currency exchange was particularly important!

Since we often wander around the secular world, we can't use the currency of the cultivator himself, and the currency of various countries, right? Zhu Rongrong said as she walked: "Actually, every city has an official currency exchange office, but there is a certain fee there, so there will always be some hidden brokers in the city. ”

"This nun are you going to exchange blue coins?"

Because Zhu Rongrong deliberately said it loudly, and she was also introducing why there was a currency exchange; So before she finished speaking, a monk who practiced Qi hurriedly came over and asked quietly.

"How to redeem?" asked Zhu Rongrong.

"A piece of lower grade spirit stone is exchanged for 10,000,000 blue coins. The monk whispered, "The other items will be exchanged at market value." ”

Zhu Rongrong nodded and said, "The price is quite reasonable!"

"Business is not good!" said the monk tooth man, "and there are more and more people doing this now!"

"That's it!" Zhu Rongrong said disdainfully: "Isn't this risk-free?"

Such a monk Yaren also stood up to Zhu Rongrong's contempt, and couldn't help but smile bitterly and said: "It's not that I don't want to take over the task of the sect! It's really not cost-effective! Those good and cost-effective ones can take the turn of our disciples who have no power and power!"

"Senior Brother Ming, how much do you want to exchange?" Zhu Rongrong didn't want to listen to his nagging, so she asked Li Mingdao.

Li Ming said: "Senior sister, I don't know anything, you can call the shots!"

"You don't have any other items, so you can get a spirit stone first!" Zhu Rongrong thought about it, and the monk tooth man was happy.

Li Ming wiped his hands on the storage bag, and as soon as his soul sense moved, he held a bunch of spirit stones in both hands and handed them to Zhu Rongrong. Zhu Rongrong was stunned and said, "Why are you giving me so many spirit stones?"

"There is a way: those who see have a share! What's more, if it's not you and I can't get these spirit stones, you can accept them!" Li Ming said earnestly.

"You kid will give me this set!" Zhu Rongrong said happily: "Then senior sister will take it for you first." After speaking, the spirit stones on Li Ming's hands with his right hand were wiped away, and all the spirit stones entered her storage bag. Then, he took out a porcelain vase and said to the monk tooth man: "This is our sect's Bigu Dan, there are ten grains in it, you can estimate it!"

"You are also from the Qinglan Sect?" said the monk in surprise.

"Hmm!" Zhu Rongrong nodded and said, "This junior brother and I are going to go out of the mountains to practice, do you think these can be exchanged for enough green coins for us to leave the Qingguo border?" Zhu Rongrong said.

"Many! The monk hurriedly shook his hand and said, "Senior sister, you can give me five grains!"

Zhu Rongrong frowned: "Then what kind of money do you still make?"

"Are you all fellow brothers, can I earn your money?" said the monk, "Didn't you slap me in the face?"

"At this price, if you want to change it, we will make a deal! If you don't change it, we will go to find someone else!" Zhu Rongrong insisted.

"Alright then!" said the monk in embarrassment. Then, after taking out a simple money bag and handing it to Zhu Rongrong, he suddenly said: "By the way, a few monks who passed by me two days ago said: A ruins of an immortal mansion have been found near Qingyu City, since you have come out to practice, you might as well go over and try your luck!"