My research focus is on individual and population-level behavioral interventions to prevent disease. Although my early research focused on smoking cessation, my focus over the past few years has been in promoting exercise and nutrition in worksite and community settings. I have tested novel interventions in worksite cafeteria and community grocery environments to promote healthy food choices. Much of this work has utilized behavioral economics strategies, such as choice architecture, social norms, and financial incentives. Building on the success of strategies to promote healthy eating behaviors in the worksite setting, I have conducted pilot studies in the community setting to test similar types of interventions in corner stores and supermarkets to address disparities in obesity and healthy eating in low-income and minority populations.