For anyone thinking it's a tough sell who is curerntly doing regular cardio; try it, it's tougher for sure but then it's over before you know it. I honestly can

For anyone thinking it's a tough sell who is curerntly doing regular cardio; try it, it's tougher for sure but then it's over before you know it. I honestly can't go back to regular cardio now that I've tried Tabata/HIIT.