I did the stairmill for 20 min straight once. Now I workout a lot. Doing crossfit style to plyometrics, lifting.that kicked my ass! - Tap the pin if you love super heroes too! you will LOVE these super hero fitness shirts!
Cardio is the best way to burn fat. I'm not talking walking on the elliptical or stair stepper or running on the treadmill without any incline or resistance.But actually, sprinting intervals are the best way to run without damaging your body!