3. Changes in CVD risk factors in the intervention groups compared to UC over time. Physical activity capacity, as measured by the 6-minute walk test (6MWT), will demonstrate the greatest improvements in the CBT+EXER arm, closely followed by the EXER arm at follow-up assessment compared to baseline. Participants in the CBT and UC arms are not expected to show significant improvements. LDL-C is expected to improve at POST in the EXER and CBT+EXER conditions consistent with pilot data.