Hi Michelle - I kind of laughed when I read your post because I am just the opposite! I do NOT have CAH, and when I exercise, I sweat profusely. I am always looking around at all the others, because usually no one is sweating but me!!! I have a sister (also non-CAH) who never sweats. I remember going out for a run with her a couple of summers ago - within 10-15 min., I was sweating up a storm and she was fine. At the end of the run, I was soaking wet. She was dry as a bone! Also, I remember at a step class a few years ago, the instructor whom was in extremely great shape, was a "sweat-er" like me. So, one day I asked her and she said she had always found the people whom are in great shape, actually seem to sweat more than people whom aren’t in such great shape. I don’t know - I just always sweat alot, whether I’m in good shape or not! So, possibly it is just genetic???