There is a special yam --- Qilian Mountain, which looks fat and thick like a fat doll, and tastes powdery and glutinous. Once, a medicine picker in the South Vietnamese country who was in the medicinal herb business went into Qilian Mountain and dug up a piece of yam, and at first the herb picker wondered why the yam here looked like this, like obesity caused by overnutrition.

I dug up a piece of yam and went back to take a look, and someone happened to ask the medicine picker: How to cure the symptoms of obesity? The medicine picker said that I have been planting yams recently, and the yams in Qilian Mountain are different from the yams we have here, and they are fat and coarse, which seems to be the result of overnutrition, just like people will become obese if they eat too many supplements. After saying that, he showed the man the yam of Qilian Mountain and the soil of Qilian Mountain, and the man touched the soil and said, "This soil is different from the soil of our Nanyue country, like yellow soil, and the color is also lighter."

The herb picker compared the soil of Nanyue Kingdom, patted his thigh and said, "I know what's going on." It is the fat caused by the soil, which is the fish and shrimp manure in the Yellow River, so the color is lighter, and the soil we have here is ordinary brown soil, which is darker in color. Fish and shrimp manure soil is more nutritious, and brown soil loses part of nutrients due to the lack of delicate manure such as fish and shrimp.

When it comes to fish and shrimp, this kind of feces is like cod liver oil and shrimp skin, if people eat too much of this food, it will also cause obesity and disorder of body functions. Only by changing the soil can we ensure that the yam is more nutritious, and not grow into an overnutrient appearance, so that the people who eat it suspect that it is the feed used to raise pigs for people to eat.

Then the herb picker asked him what he usually eats, and he leaned close to the herb picker's ear and said, "I love to eat dead children's meat, do you have any dead child meat for me to eat?" After saying this, the man picked up the Qilian Mountain yam on the ground and gnawed it, and became a boar eating yam as he gnawed and gnawed. The herb picker looked at the boar who had eaten the yam, and was so frightened that he retreated and waved his hand again and again: I didn't have the meat of a dead child to eat for you, so I went into the mountain to pick a Qilian Mountain yam.

The boar became angry and chased after the herb picker, who threw things at the boar as he ran, and when he reached the Yellow River, there was no way to go. Said to the boar chasing him: Don't come, don't come, if you come again, I will jump off the Yellow River. The boar suddenly said human words: You can't wash it even if you jump into the Yellow River. After saying that, he tried his best to bump into the herb picker, but the herb picker had an unstable center of gravity and fell into the Yellow River like a big stone.

After fishing for the body of the herb picker, he found that the herb picker was fat and fat by the Yellow River blister, and he couldn't tell what his previous face was. It is said that someone saw him dig up a piece of Qilian Mountain yam, squatted on the edge of the Yellow River and ate it, and then ran like crazy, as if someone was chasing him, screaming while running, and then lost his foot and fell into the Yellow River water.

Some people say that the Yellow River is the mother river, but some people say that the Yellow River is the river of the dead, according to historical records, the Yellow River is the origin of human beings, there are many unknown puzzles to be explained, and some experts say: the Yellow River water was a clear and transparent river before, because after the mother of the Yellow River experienced betrayal, she did not believe in her lover's words, and became more and more confused, and finally the Yellow River water became turbid.

The Qilian Mountain mentioned here is an important hill through which the Yellow River flows, and it is also the place where the yam in Qilian Mountain is most widely planted, but no one dares to eat the yam in Qilian Mountain, so it can only be fed to the pigs in the pigsty. It's like a person who wants to lose weight will eventually become obese and fatter, and will only become a South Vietnamese who is not afraid of eating meat, such as a medicine picker.