After Qin Shihuang unified the six countries and established the Qin Dynasty, he looked at the power in his hand. In order to keep it for a long time, he thought of immortality and found many folk magicians. Where on earth do those magicians have the secret of immortality? On the one hand, they want to save their lives, on the other hand, they want to get wealth, so they lied to Qin Shihuang that a woman's placenta can live forever if she eats it. After hearing this, Qin Shihuang began to collect placentas from the people for cooking.

Placenta is also called placenta hominis. After modern women give birth to children in the hospital, the placenta is treated for life. If the patient's family asks, they can take it away. If not, it will generally be discarded, and some will be preserved as Chinese medicine. Now some people secretly buy fresh placenta in the hospital for profiteering, because there is a folk legend that placenta is especially nutritious and helpful to diseases, and it can restore physical strength as soon as possible after eating it.

In fact, this statement has been handed down from the Qin Dynasty. In order to live forever, Qin Shihuang once killed many wizards. It is not true that Confucian classics were burned to harm Confucian scholars in history, but the warlock who cheated Qin Shihuang into immortality was killed and his body was burned, but the truth was covered up after a long history. In the secret recipe of deceiving Qin Shihuang to live forever, the most famous one is eating placenta. At that time, the warlock did not say that he could live forever but prolong his life, so Xu Fuhai, a loyal minister who Qin Shihuang had been accompanying, collected it from the people. Since then, the placenta has been handed down to prolong his life.

Later, the slow development of placenta became the secret recipe for court women to keep their looks. When Cixi was in power in the Qing Dynasty, she was given a placenta to eat, which kept her beautiful and charming.