Was looking into the HIIT workouts and things and had a question. Im trying to lean down a little bit (bout 10 lbs of fat) And I usually do a little cardio at the beggining and end of the workout. I workout right after breakfast first thing in the morning. Should I do hiit on days I lift weights or on seperate days? And if I do it on days I lift should I do it before or after the workout?