Primitive human life was hard. They can't eat well and wear warm clothes, so people often get sick. If you catch a cold or eat unclean food at night, you will have a high fever, diarrhea, vomiting and dizziness, and you can't participate in productive labor. Time dragged on for a long time, and the condition became more and more serious, even life-threatening. Bited by snakes and insects, or accidentally grazed the skin, infected by poisonous bacteria, the limbs will swell up. If no treatment is taken, the swollen area will fester and even be life-threatening. Due to the invasion of various diseases, people's life expectancy was relatively short at that time. Emperor Yan saw it in his eyes and was anxious in his heart. He decided to practice it himself and taste a hundred herbs. He insisted on tasting all kinds of vegetation every day, and then wrote down the nature, smell and types of all kinds of herbs, and which diseases were suitable for treatment. In order to master all kinds of medicinal properties as soon as possible, he works nonstop every day and tastes hundreds of medicinal materials almost every day. Some are highly toxic, and Shennong doesn't care. Keep tasting and eating. In this way, Shennong took risks again and again, tasted again and again, and finally mastered the properties of most herbs, practiced and used them, cured countless people's diseases and saved many people who were facing death. Huainanzi said, "Shennong tasted a hundred herbs and encountered seventy poisons a day." It can be seen that he worked hard and suffered a lot. Thanks to many things and Shennong's day-and-night efforts, the treatment with herbal medicine finally achieved results. He summed up a lot of experience about what medicine can be used to treat what diseases. Since then, China has developed medicine and started the development of traditional Chinese medicine.
According to legend, Shennong's stomach is transparent, and people can see everything clearly. If you eat something poisonous, your stomach will turn black. In this way, from the changes of these plants in the stomach, Shennong can judge which herbs are non-toxic and which are toxic. One day, after he tasted the tender leaves of an evergreen tree with white flowers, this plant was washed everywhere from top to bottom, from bottom to top, as if checking something in his stomach, so he called this green leaf "tea", and later people called it "tea". Shennong has been climbing mountains and wading for many years, trying a hundred herbs, and he is poisoned several times a day, all by tea.
One day, he saw a kind of grass with yellow flowers, and the calyx was moving one by one. Curious, he put the leaves in his mouth and chewed them slowly. After a while, he found his stomach hard to love. Before I could have tea, my stomach was broken and I fell to the ground and died. This grass that killed him is "heartbroken grass". The great Shennong has gone like this, but his spirit and story have been passed down from generation to generation.