Ohk-Hyun Ryu is a clinician specializing in endocrinology and metabolism. He works in Chuncheon Sacred Heart Hospital affiliated to the College of Medicine, Hallym University. His research focuses on obesity-related conditions such as diabetes, dyslipidemia, and bone metabolism. He analyses patient clinical data and national data, and conducts clinical trials related to obesity and diabetes. Through these studies, he aims to contribute to the prevention and management of obesity-related chronic diseases and the promotion of global health.