Obesity and Preference for Sweets (IMAGE) Washington University School of Medicine Caption As young people reach adulthood, their preferences for sweet foods typically decline. But a Washington University School of Medicine research team, led by M. Yanina Pepino, PhD, and Tamara Hershey, PhD, has found that for people with obesity, the drop-off may not be as steep, and the brain's reward system may be operating differently. Credit Washington University School of Medicine Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.