I have adrenal fatuige , and I do not sweat. Well, almost never. Now moving into menopause i get night sweats sometimes. But I have never in my life broken a sweat with exercising, no matter how hard I worked. Case in point, today. I got on my stationary bike and pedaled HARD for 30 minutes. The distance meter said I pedaled 20 miles. My heart is pounding, my breathing is fast, my muscles ache, but I did not break any kind of a sweat at all. Which means that even at this level, my metabolism is not getting revved up enough to burn fat.
Stimulating, isn't it ?