Abstract
Lifestyle medicine has generally focused on behaviors related to improving physical health and preventing physical illnesses, with little attention to behaviors related to mental health. This reflects the far greater concern in health systems around the globe for physical health over mental health. The Act-Belong-Commit campaign is the first major attempt to provide a lifestyle framework for promoting mental health that can be applied at a population level, within specific settings, and in the clinic. This article describes the campaign and offers clinicians a guide to implementing the campaign in their practice.