The importance of successful aging is increasingly acknowledged in the field of gerontology. In this paper we contribute to ongoing efforts to clarify and operationalize this concept by presenting our revised Comprehensive Preventive Corrective Proactive (PCP) model that builds on relevant research traditions, our prior formulations and accumulating research evidence based on testing this model. Recognizing biopsychosocial challenges and contextual stressors that are normative for older individuals, we emphasize the critical role of proactive behavioral adaptations in ameliorating the adverse effects of stressors. We argue that competent actions to address age-related changes and stressors are necessary to achieve positive quality-of-life outcomes. We propose that future research may benefit from employing more complex methodological approaches and data analytic tools.