On January 21, 2016 (December 12, 2015 in the lunar calendar), China scientists successfully changed the head of a monkey. Canavero claimed that in cooperation with a China medical team, he successfully "changed the head" of a monkey. (Photo source: "Daily Mail") Sergio Canavero On January 21, 2015, according to the British "Daily Mail" report, Italian neurosurgeon Sergio Canavero (Sergio Canavero) claimed that China researchers successfully "replaced" a monkey, taking a step forward in his human head transplant plan in cooperation with Chinese and Korean medical research teams. Canavero said that Ren Xiaoping of Harbin Medical University successfully connected the blood supply between the monkey's head and the new body, but failed to connect the bone marrow nerves of the two. Due to the failure of the bone marrow nerves to connect, the monkey's body part below the neck was paralyzed. It is not known whether the monkey will feel pain in the body part after the operation. For moral reasons, doctors only allowed the monkeys to survive for 20 hours. Canavero said experiments have shown that if the monkey head is frozen to-15 ° C, the monkey can survive the operation without damaging the brain. Details of the experiment will be published in the scientific journal Central Nervous System Neuroscience and Therapy. Canavero told New Scientist magazine that he had a lot of information to provide, and New Scientist also said that he had seen pictures and videos of the operation, including one of them of a monkey whose head appeared to be sewn to its body. The monkey changed its head successfully! Medical scientists say the head replacement is not Mengkanavero plans to carry out a head transplant at the end of the year for Valery Spiridonov, a Russian man who suffers from spinal muscular atrophy. (Photo source: Daily Mail) Canavero said: "I have to say that we still have a lot to continue to study. People think it is impossible to change heads, and this idea can stop. Because it's obviously possible, and we're working on it." The medical team led by Canavero and Ren Xiaoping plans to perform the first human "head replacement" operation in Russia by the end of next year, transplanting the head of Valery Spiridonov, a man suffering from spinal muscular atrophy, to another body. Canavero said last year that head replacements could extend the lives of terminally ill patients or help paralyzed patients. According to his conception, the operation would first freeze the patient's head and the donor's body, and then use a very sharp scalpel to cut off the neck and connected blood vessels and spinal cord, and then move it into the donor's body. In order to connect the brain and spinal nerves to the damaged body, a substance such as polyethylene glycol is used for fusion. In order to prevent the patient from moving, the patient will be in a coma for 4 weeks, during which time electric shocks will be used to stimulate the bone marrow and strengthen the connection between the head and the body.