It's not awful, it just seems off-the-mark. My point is that it seems avoiding physical activity at all costs is better viewed as a consequence of such a metabolic disorder, less so than a cause.

I completely agree that exercise is very important in maintaining health (exercise, especially weight-training is know to increase insulin sensitivity to some degree, for instance), I just think its role in weight-loss, for most people, is greatly exaggerated compared to fixing a diet which actively promotes fat storage (going beyond a caloric excess).

We've been telling overweight people to exercise more and eat less (esp. fat) for 40 years, it simply doesn't' seem to work [1].

[1] http://www.nytimes.com/2012/01/01/magazine/tara-parker-pope-...