It’s rainy day, sleeping day!

Some scholars analyze that the main reason why some sounds in nature, such as rain, falling snow, wind, and waves, can have a sleep-aided effect. Some scholars have analyzed that the main reason is that humans have formed a physiological reaction similar to conditioned reflexes in their long-term growth and evolution.

In such bad weather, humans rarely go out to engage in activities such as picking, hunting, and fishing, but instead live in their residences.

To reduce energy loss, sleeping becomes the first choice.

Moreover, these sounds from nature have rhythm and rhythm, and have some hypnotic effects, which will make people feel peaceful physically and mentally.

However, the rustling rain sounds on Wang Chuan's mobile phone made Yan Feifan feel drowsy in a very short time.

There is obviously another reason why the effect is so outstanding.

There are more than one sleep center in the human body, and there are three more important ones.

First, the brainstem reticular uplink activation system.

This is also the most important system, which is responsible for maintaining the awake state of the cerebral cortex.

If the patient is damaged here, the patient cannot maintain normal consciousness and falls into a drowsiness.

This system works under the cerebral cortex to regulate sleep.

If the cerebral cortex distributes impulses to it, it will cause people to fall asleep.

The second is in the hypothalamus.

This place can not only regulate sleep, but also participate in the human body's endocrine system.

If the patient's sleep is affected, insomnia or lack of sleep, a series of endocrine changes will occur. Typically, it will cause an increase in appetite and increase the risk of obesity.

The third is located at the tail end of the brain stem.

It is the location of the important breathing and heartbeat center of the human body.

Some sleep regulation centers are located in this part, which can increase awakening activities of the cerebral cortex and shorten the sleep time of a person.

If it interferes with this part, it can quickly enter sleep.

In order to verify, Yan Feifan once again listened to the rustling sound of rain falling on Director Wang’s phone.

Within a minute, he felt a deeper sleepiness again.

Yan Feifan therefore speculated that the rustling sound of rain might be directly applied to the brain stem at the tail in some way, so that he can quickly feel sleepy.

This speculation made Yan Feifan excited.

Wang Chuan has been focusing on the field of plastic surgery for so many years, and his knowledge of the brain is far less rich than Yan Feifan.

It can be said that the gap between the two in this field is not a small matter.

After the two discussed a few words, Wang Chuan couldn't keep up with Yan Feifan's rhythm and quickly jumped out and said, "Feifan, the reason why the sound of falling rain can quickly make you fall asleep, you can find a way to study it yourself."

"There are really major discoveries that may bring good news to the vast majority of insomnia patients and help those who have difficulty falling asleep get rid of their dependence on sleeping pills."

Yan Feifan smiled and asked, "Director, why don't you study it with me?"

"Without any real results, the market application prospects are quite broad, and there are endless big money."

Seeing Yan Feifan making money-counting moves, Wang Chuan couldn't help but say: "I won't fight with you!"

"Anyway, I am also a major shareholder of Feifan Medical Technology. If you make money, I will not be able to do without my share."

He sighed again: "The rustling sound of rain has been with me sleeping for seven or eight years."

"I never thought of getting to know and research in depth, and when you heard it, you had this idea."

"This means that it is destined to be your result."

Wang Chuan pretended to sigh again and said, "Discovery comes from life. Alas, people like me lack a pair of eyes that are good at discovering."

Yan Feifan smiled again and said, "Director, you have said that you have recommended this sound of rain to many people."

"After they heard it, they didn't have much effect."

"It is very likely that the two of us are just special cases and we can't find anything valuable."

Wang Chuan smiled and said, "Feifan, you don't need to fool me. I know very well. Since it is an exception, the reason is naturally easy to lock in."

"Learn from one example, it's your strength."

"I'm looking forward to you, you have any important R&D results..."

At this time, a knock on the door sounded.

Yan Feifan went to open the door and found that it was the errand running guy delivering takeout.

He had just put the food on the coffee table, and Yan Ziruo and Yu Suye came hand in hand.

The four of them sat together and started eating.

The few people were eating and talking, and Yan Feifan talked about the cooperation with Baining Medical Technology to develop the robot surgical arm.

Wang Chuan asked in detail, shook his head and sighed: "Fefan, Feifan, you have been seriously fooled by Mr. Yu."

"What does this extremely flexible surgical arm mean?"

"This means that minimally invasive surgery such as laparoscopy has taken another big step forward."

"We all know that most of the surgical instruments used for minimally invasive surgery are straight-legged. Some complex surgeries cannot be performed, so we can only choose to open the abdomen or open the chest."

"If the operating equipment in the body can bend and turn flexibly in the human body as we operate, many surgeries can be included in the field of minimally invasive surgery."

"Mr. Yu should give you six million yuan in design fees for your surgical arm, instead of fooling you to give her coolies to promote her."

Yan Feifan just scratched his head and said embarrassedly: "The cooperation with Baining Medical Technology has always been good, so I didn't think much about it."

Wang Chuan chuckled and said, "You don't have to worry about this."

"It is definitely clear to lead the long-term development of the enterprise and never rely on cheating and cheating."

"And, Feifan is a gold mine with unlimited potential, Mr. Yu will not lose the big picture because of a small amount."

"I think she will make other statements and compensation."

After pausing, Wang Chuan reminded again: "Fairy, this is a mistake that makes you understand."

"If you have similar cooperation in the future, don't respond in a hurry. Think more about it yourself or consult someone else in the industry."

Yan Feifan was taught and nodded.

Yan Ziruo pulled a tissue, wiped the oil stained on his hands, and said, "I have little experience, little knowledge, and no elders' guidance, so I will inevitably be deceived and used."

"Director, please worry more in the future."

Wang Chuan smiled and said, "Zhiruo, you are too worried, I don't have to worry about it."

"He is at most taken advantage of, and others dare not go too far."

Wang Chuan further explained: "Feifan is destined to become a famous doctor and a great doctor, and his connections must be extremely broad."

"If anyone bullies Feifan without opening his eyes, many people will take the initiative to fight back for Feifan."

He said happily: "As an extraordinary sister, can I walk sideways in the future?"

"Are you a crab? Do you want to walk sideways?" Yan Feifan teased.

Yan Suo immediately glared at him and threatened, "Freefan, don't be arrogant."

"Outsiders may not dare to bully you, but I bully you, but no one dares to stand up for you."

"Who said there was no?"

Yu Suye took the words with a smile and said, "Sister, I will protect the extraordinary people in the future."

Yan Su Ye looked at Yu Su Ye, then looked at Yan Feifan who deliberately leaned beside Yu Su Ye, and hummed twice.

"Don't be proud, I'll find a boxing coach to be my husband in the future..."

While talking and laughing, the four of them finished their lunch.

At nearly three in the afternoon, Yan Feifan received a call from an unfamiliar mobile phone number.

As soon as he answered, a middle-aged man's voice came.

"Doctor Yan, hello, I am Zhou Xian, a doctor in the cardiac surgery department."

Hearing this, Yan Feifan was a little surprised. How could Zhou Xian, who is famous for his atrioventricular septum repair surgery, call himself?

"Doctor Yan, is it convenient tonight? Please give me dinner!"

When Yan Feifan heard this, he was even more surprised.

Some time ago, there was an unhappy relationship between the two sides.
Chapter completed!