Intra brainstem connectivity is impaired in chronic fatigue syndrome, Barnden et al., 2019

And these things can have huge consequences. Bad medical advice is not inoffensive just because of a belief system that declares it so against all evidence.

In my last remission I was doing well enough that I had resumed full-time work and bought a condo with my then girlfriend. Soon after that I had a huge relapse that meant working was impossible for about the next year or so. Had it not been for a stroke of enormous luck that allowed us to be freed of the contract I would likely had ended up tens of thousands more in debt than I already was. I either would have had to declare bankruptcy or would still be spending most of my disability on it. I still faced nearly $10K in debt when I had to move in with parents and for 2 years spent most of my temporary, and reduced, disability on it until I finally got it permanent and with some of it backdated.

How many people have fallen on the wrong side of that stroke of good luck? How many people have faced a barely manageable level of hardship only to be pushed completely over the top by circumstances brought about purely from following misleading and objectively wrong advice?