Torch serious calories with this full-body workout that combines cardio and strength-training exercises for a HIIT session that works your entire body. Best of all: no equipment is needed. So basically, you can HIIT it anywhere. Trainer Allie Cohen will lead you through a series of bodyweight exercises designed to raise your heart rate — that's the calorie burning part — while strengthening your whole body. Take 30 minutes out of your day and claim it for yourself. Press play when you are ready to sweat!