In that document tachycardia and a smaller left ventricle are mentioned in more than three studies, although I haven’t checked to see if they are unrelated studies.
Mental health therapy has a bad reputation because organisations like the NHS have pushed CBT and graded exercise as cures, then blame the 50% of patients who do not recover for not trying hard enough. This, along with getting abuse from people who also are negative about mental illness and don’t differentiate between the two, has led sufferers to have concerns when therapy is brought up.
I have looked at mindfulness approaches since you mentioned them, whilst I am not convinced that they will have much direct effect on my CFS, they might help with other problems I have.
