Do you want to lose weight, build muscle, or feel more fit? Often when someone is inspired to lose weight, they decide to start doing more at-home cardio workouts. Weight loss is the benefit most often associated with cardio, but there are plenty of other reasons to add it to your weekly routine. Regular cardiovascular exercise can also boost energy levels, increase endurance, strengthen your heart and lungs, reduce stress, and, if the intensity is high enough even build muscle. Yes, you need a calorie deficit to lose weight. But you also need to increase your basal metabolism, while developing some fat-burning lean mass along the way. Therefore, if you want to burn fat at home, then you need to work on your cardio and build muscle. And this is the circuit workout program to do it.