This brief research discusses the progress and prospects of the authorʼs research on the history of medical thought in early modern Japan, primarily focusing on the Edo period. It specifically examines the concept of Retro Thoughts in early modern Japanese medicine and explores the authorʼs recent research interest in ginseng. This brief research is divided into three parts. The first part covers the authorʼs doctoral program research, which includes the Retro Thoughts concept in ancient Chinese medicine and the movement of doctors between Ming-Qing China and early modern Japan. The second part focuses on the authorʼs post-doctoral research, which explores the application of classical medical books like Shang Han Lun（Treatise on Typhoon Fever）during the plague epidemic in early modern Japan. The third part presents the authorʼs outlook on future research topics. While considering modern medicinal cuisine, we also want to focus on the cultural discourse of “the unity of medicine and food,” particularly the dissemination of medicinal plants such as ginseng and the import/export of medicinal herbs.
