［about the product］ It is never the right medicine to keep prescribing drugs with a name for a disease. If you are healthy, you are happy. As long as you are healthy, you will be happy, and as long as you are healthy, you will get by. As if to encourage this belief in health, the world is overflowing with health-related information, and people are simply enriching the health industry without paying attention to the true nature of ""health. In the field of medicine, while advances in medical science are overcoming incurable diseases, people are forgetting to take a holistic view of human existence, and to look at the true nature of human beings, which are both healthy and sick. In this book, the author, who has been involved in community medicine as a physician for many years and has been thinking about true medicine from a holistic viewpoint, clarifies the common misconceptions about illness and questions about the current state of the medical world, while explaining in simple terms the concept of ""body-mind-spirit consistency,"" which he advocates as the ideal of medicine. He also explains in an easy-to-understand manner the concept of ""body-mind-spirit integrity,"" which he advocates as the ideal medical treatment. ［Author Biography］ Takaharu Izumi Born in Kaohsiung, Taiwan in 1949. Entered the Department of Pharmacy at the China Medical University in Taichung, Taiwan, in 1967. Studied the basics of Chinese medicine and Chinese herbal medicine, and encountered Japanese herbal medicine. Studied in Japan in 1976. After working as a research student at the Department of Biochemistry, Faculty of Pharmaceutical Sciences, Tohoku University, he graduated from Nagasaki University School of Medicine in 1982 and obtained his medical license in Japan. In the same year, he joined the Third Department of Surgery, Faculty of Medicine, University of Tokyo. In 1988, he opened the Sai Clinic in Tsuzuki-ku (formerly Midori-ku) Yokohama.