The earliest record is that in 1775 in Paris, an Austrian doctor named FranzAntonMesmer was hypnotized. He was able to treat patients with "animal magnetism" through a set of complicated methods, including making them lie on their arms. The mechanism of hypnosis is explained by the mysterious animal magnetism, which is a kind of suggestive force according to modern understanding. It is said that the French government is prepared to pay a lot of money for his treatment, but he refuses, which may be because he doesn't know it himself. Later, a Scottish doctor, James‘Braid, became interested in this phenomenon, which can cause anesthesia to surgical patients. In the 19th century, he put forward the word "hypnosis", and made a scientific explanation of hypnosis, thinking that it was a passive and sleep-like state caused by the healer, and borrowed the Greek word "hypnos" (meaning sleep) to change it to "hypnopsis". Later, under the systematic and in-depth research of a group of people led by the former Soviet Union biologist Pavlov for many years, hypnosis has made great progress, and hypnosis has really become a rational and useful applied science. Now, there are hypnosis laboratories in prestigious universities and hospitals in many countries, and the feasibility study of applying hypnosis to medicine, teaching, industry and other fields is actively carried out.