Mortality rates in the United States are higher for men than they are for women as a result of chronic diseases such as heart disease, cancer, and diabetes. Despite these disproportionate rates, few health interventions are targeted to men, and limited knowledge exists regarding the specific components needed to design technology health tools to appeal to men. The purpose of this quantitative study was to examine the relationship between the use of technology health tools and the role of self-efficacy in men and the influence on participation in healthy lifestyle behaviors. A quasi-experimental design was used to analyze data collected from the Health Information National Trends Survey (N = 990). A group of men (n = 323) who used technology health tools were compared to a control group of men (n = 667) who did not use technology health tools. Results from the regression analysis indicated that the use of technology health tools for self-management of health behavior had a significant effect on participation in healthy lifestyle behavior (p = .026). Self-efficacy was also found to mediate the relationship between technology health tools and participation in healthy lifestyle behavior (p = .018). This study supports the United States federal government's Healthy People 2020 objective to increase the proportion of people who use Internet health management tools. The implications for positive social change include knowledge for developing targeted technology health interventions to increase the participation of men in healthy lifestyle behavior, reduce the number of men with chronic diseases, improve chronic disease management, and reduce healthcare costs in the United States.