When in the United Kingdom has been diagnosed as a vegetative person, Hong Kong Phoenix Chinese TV host Liu Hai Ruo later not only woke up, but also able to return to work. In the author’s opinion: hyperbaric oxygen played an important role. The most important step after the return of Liu Hai Ruo, who had completed the major surgery in the UK, was: hyperbaric oxygen. Patients with cranio-cerebral injuries like Liu Hailuo have to go through this treatment step after surgery: anti-inflammatory, neurotrophic, dehydration, wake-up and symptomatic treatment, and other conventional treatments, as well as hyperbaric oxygen therapy. As Liu Hailuo’s treating physician, Ling Feng, director of neurosurgery at Beijing Xuanwu Hospital, said, 200 hyperbaric oxygen treatments are done first. Another equally famous vegetative person that Director Ling Feng has seen is the Hong Kong heroic police detective Zhu Zhenguo, who was very popular on the Internet a few years ago, but several years later, he is still a vegetative person. Why is it that both of them were seen by Director Ling Feng and used the same treatment method, but the results are vastly different? I don’t know if it has to do with how early or late the patient does hyperbaric oxygen. The principle of doing hyperbaric oxygen is that the earlier the better. One minute earlier hyperbaric oxygen treatment, one minute earlier benefit.