The best way to structure a balanced workout week is to incorporate a mix of cardiovascular, strength training, and flexibility exercises. Aim for at least 150 minutes of moderate aerobic activity weekly, such as brisk walking or cycling. Include two or more days of strength training targeting major muscle groups. Additionally, dedicate time for flexibility and balance exercises, such as stretching or yoga, to enhance overall fitness. Scheduling rest days is also vital to allow muscle recovery and prevent overtraining.