This article is either pseudo-science at best and sexist garbage at worst. I'll be generous and call it the former. See, I've done 9 Ironmans, and coached sev

This article is either pseudo-science at best and sexist garbage at worst. I'll be generous and call it the former. See, I've done 9 Ironmans, and coached several athletes doing them as well, so I know a thing or two about cardio. And I know a heck of a lot of women who regularly do them as well. This just in: they are not fat. Many were heavier when they started, some of them turned lean-and-mean, while others slimmed down and toned up. Women: yes, run. Yes, bike, yes, swim. Do crossfit. It's good for you, just like you thought it was. There is an OLD saying that says "diet is for weight control, exercise is for fitness". What this guy is describing is people who are increasing their calorie load (particularly the carb part of it) proportionally to their calorie needs. So they don't lose weight. Mid-aerobic exercise increases metabolic rate specifically because it tunes your body to better metabolize FAT. That's how getting fitter works. You can oxidize more fat over a period of time. More fat oxidation means more ATP means more fitness/speed/endurance/whatever. All of that takes calories.