He received his medical degree at Tohoku University, followed by his doctorate at Kyoto University. Topics of his previous research were infectious sources of sporadic legionellosis, the relationship between aging and adaptation to high altitude environments, health and happiness among the elderly living in Domkhar valley, Ladakh, health care systems for the elderly in Bhutan, and so on. He focuses on relationships on human health, natural environments, and cultural backgrounds. His research interests are in the field of medicine.