 Obesity is a major public health problem that disproportionately affects rural men and promotes the development of chronic conditions such as diabetes, cardiovascular disease, arthritis, and cancer. This study proposes to evaluate a mobile self-monitoring application app with Wi-Fi scale and text messaging intervention MT: mobile technology plus for achieving weight loss in overweight and obese rural men. This proposal aligns with 1 Healthy People 2020s aim to eliminate health disparities by increasing physical activity and reducing obesity in adults; 2 the NIHs strategic plan to prioritize obesity reduction research among underserved rural populations; and, 3 the NINRs strategic focus on technology to promote health. Sixty nine percent of rural men in Nebraska are overweight or obese with increasing prevalence during midlife 40-59 40 and older 36. Rural men are more likely to smoke, be obese, be physically inactive, and have shorter lifespans 2 years than urban men. Rural men are also more likely to be uninsuredunderinsured, less likely to engage in preventive health services, and report overall poorer health than urban men. Despite the burden of obesity, no self-monitoring mobile technology interventions targeting weight loss in rural, U.S. males exist, though the investigators preliminary study demonstrated rural men will use mobile technology for eating and activity self-monitoring. Studies show self-monitoring as one of the most effective behavior-change techniques for weight loss. MT provides an accessible means of real-time self-monitoring support for targeting lifestyle behaviors that lead to weight loss. 