The overall goal of this study was to test a practical, theory-based intervention to achieve long-term behavior change for women with Type 2 diabetes at high risk for developing coronary heart disease (CHD). Epidemiological and clinical studies suggest that diabetes is associated with increased risk for CHD that is greater in women than in men. CHD is a major cause of death and functional limitations in women, but the vast majority of CHD studies have primarily involved middle-aged men. There is convincing research evidence that healthy lifestyle behaviors, including low-fat diet, physical activity, stress management, smoking cessation, and social support, can reduce CHD risk