I like Chili very much, but I don't know why Chili is spicy. Thank you.

Pepper makes people feel hot because the substances contained in pepper stimulate people's nerves. So what is this substance? The members of this group learn by consulting books and surfing the Internet. Pepper is spicy because it contains a chemical called capsaicin. Capsaicin mainly exists in a fibrous substance that wraps pepper seeds. The chemical name is 8- methyl -6- decene vanillin, and the molecular formula is C 18H27NO3. Pure capsaicin is a flaky colorless crystal with a melting point of 65 degrees, a molecular weight of 456.68 and a boiling point of 200℃ to 2 10℃. Soluble in ethanol, ether, benzene and chloroform, slightly soluble in carbon disulfide. Pepper is a condiment because it contains pepper. It can be seen that the redder the pepper, the better. The key is how high the capsaicin content is. Eating pepper in moderation is good for the human body. A recent study in Japan shows that eating Chili can promote the decomposition of body fat, reduce the content of body fat and achieve a good weight loss effect. In addition, eating peppers can make people's skin smooth and elastic. It can be used for beauty. After eating Chili peppers, people's brains will release a substance called endorphins. This substance can cause a temporary sense of pleasure. This is one of the reasons why people like to eat Chili (except for individuals, of course). Eating Chili can also promote digestion and metabolism. Among China people, people who like to eat Chili peppers are from Guizhou. There is a saying in Guizhou that "if you eat Chili, you can eat two or two more rice." . Generally speaking, people in Guizhou can't eat without peppers. In addition, pepper has anti-tumor and analgesic effects and has high medicinal value. It is no exaggeration to say that peppers are all treasures. But you can't eat too many good things. Studies have shown that excessive intake of capsaicin will lead to cancer in the body. Eating too much pepper can not only prevent cancer but also cause cancer.