The period reveals a decisive shift toward translating preventive knowledge into routine practice, with emphasis on guideline-based care, scalable, low-resource strategies, and the integration of prevention into both primary care and community settings. Real-world trial designs—often randomized or controlled—accentuate interventions that are feasible for wide adoption, including simple checklists and facilitator-supported approaches. The emergence of theory-informed messaging and global health-promotion frameworks guides preventive efforts beyond the clinic, fostering a more preventive-oriented health culture. Historical Significance: This era consolidates a paradigm that couples clinical practice improvement with population-level prevention, introducing behavioral theories and community engagement as central components. It lays the groundwork for scalable prevention strategies, policy-oriented health promotion, and sustained impact on risk factors across diverse settings, shaping subsequent prevention research and program design.