Mental health promotion interventions are applicable to individuals, groups, and whole populations and can be delivered in many ways, including media and communication technology. They can be applied in low-resource settings by mobilizing existing community resources like opinion leaders, health workers, and peer educators, thereby increasing cost-efficiency, cultural acceptability, and local capacity. There needs to be a greater focus on study designs and variable measures that examine process-factors affecting well being outcomes. Early interventions through intersectorial collaborations may result in improved long-term positive mental health outcomes for individuals, families, and communities.