Behavioral Exercise Training to Reduce Cardiovascular Disease Risk

This study is testing a behavioral exercise training program to help reduce the risk of heart disease in men with prostate cancer who are receiving hormone therapy (called ADT). ADT can increase cardiovascular risk, and researchers want to see if structured exercise can help. **You may be eligible if...** - You have been diagnosed with stage II, III, or IV prostate cancer - You are currently on hormone therapy (ADT) - You have already completed local treatment such as surgery or radiation - You are between 40 and 85 years old - You can speak English and use a phone, computer, or smartphone - You are able to safely participate in an exercise program **You may NOT be eligible if...** - You cannot have an MRI (e.g., metal in your body, claustrophobia) - You have an existing heart condition or heart failure - You have an active infection or serious illness - Your blood counts (hemoglobin or platelets) are very low Talk to your doctor to see if this trial is right for you.