i think i read somewhere that you shouldn't do more than two hours of cardio total per WEEK, but i can't remember where? that would mean that if i do cardio 3xs/wk, each session shouldn't be more than 40min. does this sound right? i should probably mention that i am a 30yr old male, all natural, with about 15-20 lbs of fat to lose.
thx.
thx.