Behavioral journalism is a term used to describe a theory-based health communication messaging strategy that is based on conveying “role model stories” about real people and how they achieve healthy behavior changes. The aim is to stimulate imitation of these models by audiences of their peers. Theoretical foundations for the strategy itself are in Albert Bandura’s social cognitive theory and Everett Rogers’s model of diffusion of innovations, but it can be used flexibly to convey various kinds of theory-driven message content. Behavioral journalism emerged as an explicit health communication technique in the late 1970s and was developed as a distinct alternative to the social marketing approach and its focus on centrally generated messages devised by experts. It has been used subsequently to promote smoking cessation, improvements in nutrition and physical activity, avoidance of sexually transmitted diseases and unplanned pregnancy, reduced intergroup hostility, advocacy for healthy policy and environmental changes, and many other diverse health promotion objectives. Formats used for behavioral journalism include reality television programs, broadcast and print news media, printed newsletters for special audiences, documentary film and video, digital and mobile communication, and new social media. Behavioral journalism is intended for use in concert with community organization and actions to prompt and reinforce the imitation of role models and to facilitate and enable behavior change, and its use in that context has yielded many reports of significant impact on behavior. With citations of use growing steadily in the past two decades, behavioral journalism has proven to be readily adaptable to new and emerging communication technologies.