"If the emperor doesn't believe in the minister, then the minister didn't say anything just now, and the minister retired." After Zhang Nan finished speaking, he bowed his hand to Li Eryi, and then stepped forward to leave, of course, Zhang Nan didn't really want to leave, because Zhang Nan knew Li Er's character, and Li Er would definitely stop him.

"Wait a minute."

"Sure enough." Zhang Nan said in his heart.

"Qingquan, you tell me clearly, what will happen if this person is too fat." Li Er asked.

"Then let the ministers do a wave of popular science for the emperor." Zhang Nan cleared his throat and continued: "The minister dares to ask the emperor, why do people eat? ”

"This ......" Zhang Nan asked, and really stopped Li Er, yes, everyone eats every day, who knows why they eat? Isn't it because you're hungry? So Li Er said: "When people are hungry, they have to eat." ”

"That's right, that's right, but why do people go hungry?" Zhang Nan continued to ask.

This question stopped Li Er, where did Li Er know so much?

"I really don't know." Li Erdao.

"The reason why people eat is because their bodies need the energy in food, for example, does the emperor feel that he is hungry for a day when he rides a horse to fight, or is he hungry for a day when he sits in the imperial study?" Zhang Nan asked.

"This, naturally, is a day of fighting on horseback, and the hunger is fast." Li Er replied truthfully.

"That's right, because people who ride horses and fight wars consume a lot of energy, so they get hungry quickly, so they need to eat to get the energy in the food, if you don't do anything for a day and just lie in bed, you won't be very hungry if you don't eat that day, right?" Zhang Nan said.

"That's right." Empress Eldest Sun nodded.

"If you don't eat, then you will feel dizzy and weak, right?" Zhang Nan said.

"Qingquan, you just want to say that food is what kind of energy is provided to people." Li Er was fed up with Zhang Nan's way of asking and answering, so he chose to rush to answer.

"Eh, Your Majesty, you will answer it." Zhang Nan said with a smile.

"Hmph, that's, I'm ...... Don't talk nonsense, hurry up and continue to talk to me. ”

"But if a person eats a lot of food, accumulates a lot of energy but doesn't exercise, and these energies can't be dissipated, what will the emperor think?" Zhang Nan said.

"Naturally, it's accumulated in the body." Li Erdao.

"That's right, this is the root cause of obesity, eat more, move less, energy can't be emitted, so people will become fat." Zhang Nan said.

"But isn't that supposed to be a good thing? Since people use energy in their actions, then I store all the energy, and when I use it, won't I use it more than others? Empress Eldest Sun asked strangely. It can be seen that the problem of Empress Changsun is Li Er's problem.

When Zhang Nan heard this, he said in his heart: "You think you are a camel." However, Zhang Nan patiently explained to Empress Changsun: "It's not wrong for Empress Changsun to think so, but is this really the case?" I believe that the emperor must have a daughter who is the same age as His Royal Highness King Wei. ”

Li Er didn't know what Zhang Nan meant by asking, so he just nodded.

"If the emperor doesn't believe it, you can let His Royal Highness King Wei and the little princess race to see who runs faster, I think His Royal Highness the King of Wei will definitely not run as fast as the little princess." Zhang Nan said with a smile.

Li Er didn't speak, because Li Er knew that his son would definitely not be able to outrun his daughter, and his son wouldn't be able to walk a few more steps, let alone run?

"Obesity is a phenomenon caused by excessive accumulation of fat in the human body, and it is not considered a sign of "health". Obesity not only affects physical beauty, but also brings inconvenience to life, and more importantly, it is easy to cause a variety of complications, accelerating aging and death. Zhang Nan said, Zhang Nan is not alarmist, but the truth, but Li Er doesn't seem to believe it.

"Qingquan, is it as serious as you say?" Li Er really didn't believe it, after all, Li Er had never heard of it.

"Is it as serious as I said? Your Majesty, please remove the word "mo". According to statistics, the incidence of cerebral embolism and heart failure in obese patients is twice as high as that of normal weight patients, the incidence of coronary heart disease is two times higher than that of normal weight patients, the incidence of hypertension is two ~ six times higher than that of normal weight people, the incidence of diabetes is about 4 times higher than that of normal people, and the incidence of gallstones is four ~ six times higher than that of normal people, and more serious is that the life expectancy of obese people will be significantly shortened. Your Majesty, think for yourself. ”

Although Li Er has not heard of any of these cases cited by Zhang Nan, it still sounds quite serious.

"Your Majesty, do you think there will be no more of this? Is it early? Obese people are often afraid of heat, sweating, fatigue, lower limb edema, varicose veins, skin creases and dermatitis, etc., severely obese people, slow movement, walking activities are difficult, a little activity on the panic and shortness of breath, so as to affect normal life, serious even lead to the loss of labor. Obese people are also susceptible to various trauma due to their slow motor responses. Zhang Nan continued.

"Obese people have increased adipose tissue, increased oxygen consumption, and large cardiac work, which makes the myocardium hypertrophied, especially the burden on the left ventricle, which is easy to induce hypertension over time. Lipids are deposited in the walls of the arteries, narrowing and hardening the lumen and predisposing to coronary heart disease, angina, stroke, and sudden death. When it came to sudden death, the already precocious Li Tai was frightened and cried.

Seeing Li Tai crying so sadly, Empress Eldest Sun hurriedly pulled Li Tai into her arms and coaxed him, Li Er was very unhappy Zhang Nan scared Li Tai into crying, so he said with a black face: "Qingquan, look at the good things you have done." ”

Unexpectedly, Zhang Nan was not frightened by Li Er at all, but said with a righteous and awe-inspiring look: "The minister is telling the truth, the emperor can't listen to it now, and he will regret it in the future." ”

"You ......" Li Eryi was speechless for a while, not because he couldn't speak, but because he was angry with Zhang Nan.

"Okay, okay, don't be too angry, the concubine believes that Qingquan is not a person who casually says that kind of irresponsible thing." Empress Eldest Sun hurriedly relieved the siege.

"Queen Mother, Qingque doesn't want to die yet, Qingque still wants to accompany you, your father and the queen mother more." After saying that, Li Tai cried even more sadly.

"Good, the green finch won't die, don't be afraid, it's okay." Empress Eldest Sun coaxed Li Tai and said.

"Okay, Qingquan, even if what you say is reasonable, how to treat Qingque's disease, you can talk about it." Li Erdao.

"Even if you call it, what the minister said must be right." As soon as Zhang Nan's words came out, Li Er immediately stared, and Zhang Nan had no choice but to continue: "In fact, it is very simple to be cured, that is, to lose weight. ”

"Lose weight?" Li Er and Empress Changsun said in unison.

"Yes, that's right, it's weight loss."