Written By: Kaylie Gragnano When it comes to exercise, you may have asked yourself: “Should I do more cardio or focus on strength training?” The truth is, both play an important role — but understanding how they complement each other can help you get the results you want without wasting time or effort. Here’s a breakdown for beginners and fitness enthusiasts alike. What Cardio Does for Your Body Cardiovascular exercise, or “cardio,” gets your heart rate up and improves circul