How do I know what I actually burn?
I am a poor college student, so no way am I buying a heart rate monitor. haha Anyway, I know cardio machines are far from accurate, but how inaccurate are they? For instance, I did 40mins on the elliptical. The heart rate thing was a little iffy, but it says mine was between 90-125. And it said I burned over 250 calories.…
