As a bodybuilder, I've found that incorporating cardio into my routine is essential for heart health and improved endurance. Experts recommend 150 minutes of moderate cardio or 75 minutes of high-intensity cardio per week. However, it's important to balance cardio with strength training to build and maintain muscle mass. I typically divide my cardio sessions throughout the week to avoid muscle fatigue and ensure optimal recovery. Remember, it's all about finding a routine that works best for your bodybuilding goals.