The most important way to prevent complications of CHD is to follow the treatment plan from your doctor. This may include changing what you eat, being more active, losing weight, quitting smoking, taking medicine, and other measures. Also, visit your doctor on a regular basis so he or she can check how well your treatment is working. Your doctor can tell you how often you need a checkup. Make sure you keep these appointments. They give you and your doctor an opportunity to review your treatment, adjust your treatment if needed, and detect any new problems before they become serious.