Start with a planet hitting the earth

As time went by.

I don't know how much time has passed, one year, two years or ten years.

Chen Yuan didn't count the time.

This morning.

Chen Yuan got up from the bed.

He looked at Ya beside him.

Ya closed her eyes and slept soundly.

Looking at this exquisite and perfect beauty in front of him.

Chen Yuan's heart was full of love.

He raised his hand and gently stroked Ya's hair.

Ya's eyelashes moved, and she slowly opened her eyes.

Looking at Chen Yuan.

The two looked at each other.

Ya smiled at Chen Yuan, raised her little hand, held Chen Yuan's hand, and looked at Chen Yuan with love in her eyes.

Chen Yuan smiled.

Just looked at her quietly.

Didn't say anything.

Seeing Chen Yuan's reaction, Ya closed her eyes, slowly leaned into Chen Yuan's arms, and whispered: "Have you noticed your changes?"

Chen Yuan was slightly startled: "Changes?"

Ya raised her face, she looked at Chen Yuan with interest, and said with a smile: "Well..., changes."

Chen Yuan smiled and said: "What changes?"

Ya smiled and said: "If it was five years ago, you would definitely want to do something to me as soon as I got up, but as time goes by, you no longer think about those things."

Hearing this, Chen Yuan was slightly startled.

He thought about it.

Indeed, when Chen Yuan first synchronized his consciousness with his brain, he was full of impulses when he saw Ya.

Now, when Chen Yuan saw Ya, although he was very loving, those impulses had disappeared unconsciously.

I used to want to hold Ya in my arms every day, but now just looking at her is enough to suppress that impulse.

"In other words, has the emotion faded?" Chen Yuan looked at Ya.

Ya hummed: "I've said before that human emotions are like stubborn stones, they are bumpy. When something stimulates those emotions, the emotions will have a huge reaction."

"But as time goes by, emotions will become less and less sensitive to stimulation, and the stubborn stone-like emotional system will slowly turn into a rounded cobblestone."

"You won't have any emotions." Ya raised her face and looked into Chen Yuan's eyes, she smiled: "This is why your consciousness is so impulsive when it just synchronizes with your brain."

Chen Yuan hummed, he looked at Ya, he smiled and said: "Then do you think it's better for me to be impulsive? Or is it better now?"

Ya blushed and leaned her little head against Chen Yuan's chest: "I don't care, as long as it's you, everything is fine."

Hearing this, Chen Yuan was happy.

Chen Yuan thought about it, he smiled and said: "I think it would be better to reset the emotions."

Ya's face was all red, she raised her face and looked at Chen Yuan: "You bad guy... you want to torture me again."

"Haha." Chen Yuan laughed.

Seeing Chen Yuan smile, Ya refused to give in. She raised her hand and beat Chen Yuan's chest.

Chen Yuan held Ya's hand and held her in his arms.

He stroked her silver hair.

Ya slowly closed her eyes and leaned on Chen Yuan's chest.

Chen Yuan said: "Emotions can't be cold, but more passionate, which is more interesting."

"If it's cold, it's boring."

Chen Yuan smiled and said: "What's the point of eternal life without a little passion?"

"So..., you'll have to work harder in the future."

Ya raised her face, looked at Chen Yuan with her big eyes, and said: "You're so bad. But what you said is true."

She said: "Eternal life, feelings will gradually fade. Even if a person has good perseverance, he will lose the initial passion as time goes by. If life loses passion, it will be a walking corpse."

She looked at Chen Yuan and said: "I agree to regain feelings."

"Just..."

Chen Yuan looked at Ya: "Just?"

Ya looked at Chen Yuan and showed a naughty smile: "I still prefer the feeling of taking the initiative, but when you take the initiative, I don't even have the ability to resist."

Chen Yuan smiled.

"Isn't this normal? In biological organisms, males and females are both active."

Ya closed her eyes and leaned her little head against Chen Yuan's chest.

"It's up to you."

"Yeah."

Chen Yuan looked at Ya who had her eyes closed.

He became interested, and he said, "Ya."

Ya hummed softly, as a response.

Chen Yuan said, "Our current bodies don't need sleep, but if our bodies are those of ordinary people, what will happen if an ordinary person doesn't sleep?"

Upon hearing this, Ya slowly opened her eyes and said, "Death."

"Death?"

"Yeah."

"Sleep has many functions."

"First, it can reduce its own energy loss. When people sleep, the energy loss in the body is the lowest. At the same time, the level of energy synthesis in the body will also be enhanced. The energy obtained in the body will be synthesized into energy that can be stored, brain glycogen."

"Also, sleep can promote the discharge of waste." Ya said softly, "When our brain is active, some metabolic products will be produced, that is, a pile of garbage."

Chen Yuan's heart moved.

Garbage, isn't that the same as the running garbage of a computer system?

"When we sleep, the garbage will be cleared out."

Speaking of this, Ya looked at Chen Yuan and said, "If those people can't clean up the garbage, their brains will become dull."

She smiled: "I'll tell you something interesting, and I'll tell you on a daily basis, if an ordinary person doesn't sleep."

"If you don't sleep 24 hours a day, a person will be very excited and happy." Ya said.

Chen Yuan was stunned: "How can you still be excited if you don't sleep for 24 hours?"

"Well..." Ya said: "At the beginning, I was tired, but after the fatigue, I was excited."

"The brain secretes a hormone called dopamine. The reason why we feel happy is because of the existence of dopamine. When we encounter happy things, dopamine will be secreted, and we can get excitement and happiness."

"After our brain detects that the body is sleep deprived, the brain will secrete dopamine to supplement the sleep and lack of sleep. Therefore, we will feel very excited and happy."

"When there is a lot of dopamine secretion, anything you see can easily make you happy." Ya looked at Chen Yuan and said with a smile, "You will be amused, just have a low laughter point."

Hearing this, Chen Yuan thought of his experience of staying up late before he was reincarnated as an asteroid.

When you stay up late, you will feel a little tired at first, but after a while, your body will start to get excited and you will no longer feel tired.

Is this because of dopamine?

Ya Xiao rested her head on Chen Yuan's arm and said softly: "Then as time goes by, the excitement will slowly disappear, and people's memory will begin to weaken..."