Organizational scholars and practitioners alike have long been interested in the role played by employee happiness on workplace behavior. Building on this widespread interest, I suggest the consideration of worker happiness as psychological well-being (PWB). To that end, I first define PWB and review the current role of PWB in the workplace. Second, and building upon this extant body of literature, Fredrickson's Broaden-and-Build model is introduced as one positive psychological approach especially well-suited to help provide a better understanding of the role of PWB on such important workplace outcomes as job performance and employee retention. Third, I provide evidence that PWB may also be beneficial in better understanding employee cardiovascular health efficiency. Fourth, various intervention strategies are introduced, designed to enhance both individual betterment and organizational health. The chapter closes with several interesting directions for future research.