Not knowing anything about the subject, I would expect to observe a low basal metabolic rate in CFS regardless of its ultimate cause or causes.

Ooh, why? I thought that was thyroid and starvation?

I mean, low once you adjust for all the known predictive factors, e.g. age, sex, height, weight and exercise. Obviously people who have trouble standing up are going to show low BMR in absolute terms. But I mean 'even after adjusting for sedentary lifestyle'.

Surely the 'stress' theory predicts high BMR?