lobsteriffic, the only cardio I enjoy is heavy bag work. My current apartment is a shoebox and to small for a heavy bag. Its barely big enough for an adult male. The reason why I want to start doing cardio is chronic diseases run in my family. What have I tried? Hill sprints, heavy bag work, kettlebell swings for rounds, lowerbody bodyweight exercise curcuits. It is difficult doing cardio after a lifting session and the day after lowerbody sessions. I'm a student, however my school does not have a gym. I will look into getting a YMCA membership after summer finals.