Despite recent drug developments, the best available strategy we have today against HIV/AIDS is still preventive education. Since a voluntary behavioral change is difficult to achieve, even under the best possible conditions, preventive-education interventions should consider any strategy that facilitates the process of change. Although the final objective is to adopt a specific behavior, theoretical models that include cognitive-perceptive components can be useful in achieving that objective. It has been proven that a certain amount of information, even if not sufficient for sustaining behavior change, is an important predisposing component of initiating behavior changes. This paper examines the role of the Health Belief Model (HBM) as an educational tool for HIV/AIDS preventive interventions, and supports the use of social-cognitive theories in health education.