I workout 4-5 times a week. 2/3 of them in a gym:cardio 1/2 times a week, +1/2 strength (every other legs, arms, stomach, etc.) + Boxing 2 times a week :D I'm not skinny or suuuper-fit, but I do have one of the best "cardios" (stamina?) in class (not just among the girls, but boys too), and I'm...