I described mainly about my research activities in the 16 years and 8 months since I became professor of pediatrics at Juntendo University. Since the fulfillment of research activities has a great influence on clinical activities, and sufficient research cannot be conducted without enhanced educational activities, I have tried to maintain a good balance between clinical practice, research, and education. Research activities in our department often depend on the research abilities of graduate students, but the leadership skills of the professors and associate and assistant professors who supervise the research are also important. First, I talked about the main research of the 12 research groups in our department. In addition, my specialty is pediatric gastroenterology and nutrition, and it is no exaggeration to say that Juntendo Pediatrics is one of the leaders in the field of pediatric gastroenterology and nutrition. I also provided a detailed explanation of research on pediatric inflammatory bowel disease (IBD), which is currently the most important research topic in our department. I hope that this environment will continue to foster the research mindset of young people in a natural way.