
Bobby Kyungbeom Cheon, Ph.D.
Stadtman Investigator
Social and Behavioral Sciences Branch
NICHD/DIPHR
Research Topics
Dr. Cheon investigates the influence of social and psychological factors on human appetite, eating behaviors, and diet-related chronic diseases (e.g., obesity). His research also examines how disparities in obesity and cardiometabolic disorders emerge from the influence of socioeconomic adversity on food choices and eating behaviors. Using a combination of experimental studies, observational research, and population-level approaches, he investigates how social influences and socioeconomic vulnerabilities shape food-related behaviors and health outcomes. Through this work, he seeks to (1) identify psychological factors that promote obesogenic eating behaviors, (2) improve prediction of which children are at greater risk (or show resilience) to developing obesity and cardiometabolic disorders later in life, and (3) inform interventions aimed at reducing health disparities in these conditions.
Biography
Prior to joining NICHD, Dr. Cheon was an associate professor in the psychology department of Nanyang Technological University, in Singapore, and a principal investigator at the Singapore Institute for Clinical Sciences within the Agency for Science, Technology, and Research (A*STAR). Dr. Cheon received his bachelor’s degree in cognitive science from the University of Virginia and his Ph.D. in psychology from Northwestern University. He completed postdoctoral training at the Business School of Nanyang Technological University.
Selected Publications
- Cheon BK, Siroty MB, Ng XQ, Lim EX. A daily gratitude listing intervention is associated with selection of smaller food portion sizes. Appetite. 2026;217:108336.
- Cheon BK, Siroty M, Bittner JM, Lee LL, Pink AE. Food insecurity may promote opportunistic eating through heightened satiety insecurity: A cross-sectional mega-analysis study. Am J Clin Nutr. 2025;122(6):1748-1758.
- Siroty MB, Bittner JMP, Howell JL, Cheon BK. Food-related implicit associations predict self-reported eating behaviors and dietary habits in large US samples. Obesity (Silver Spring). 2025;33(4):796-806.
- Cheon BK, Brown A, Bittner JMP, Saha A, Smith MR, Bloomer BF, Te-Vazquez JA, Adekola PE, Jones JL, Brady SM, Yang SB, Turner SA, Tanofsky-Kraff M, Yanovski JA. Lower subjective status is associated with reduced satiation and satiety among children and adolescents: A laboratory study. Appetite. 2025;206:107811.
- Pink AE, Teo R, Chua B, Kong F, Nadarajan R, Pei JY, Tan CHY, Toh JY, Chong YS, Tan KH, Yap F, Meaney MJ, Broekman BFP, Cheon BK. The effects of acute social ostracism on subsequent snacking behavior and future body mass index in children. Int J Obes (Lond). 2024;48(6):867-875.
Related Scientific Focus Areas

Social and Behavioral Sciences
View additional Principal Investigators in Social and Behavioral Sciences


This page was last updated on Friday, August 21, 2026