Sorry, I got that and I agreed that I wondered how applicable it is. (Maybe I responded to someone else not you on that point). I didn't actually retrieve any of these papers and couldn't say if any of them did anything halfway intelligent like take sample cells and analysis the mitochondria in them. If I were a researcher I would want to do at least that before trying to make any claims regarding CFS. However, there is some relevance to fatigue and it is interesting what things helped normal fatigue. Seems to me that science should have come up with a more humane way to test that since the dark ages of the 60's. There are groups out there now who advocate for animals and it's really sad when you look at studies through google/scholar and find how many studies are still done very inhumanely.