So healthy controls could switch to a sort of automatic energy-saving mode to repeat similar tasks? That sounds handy for energy conservation, and...
No, I was addressing two topics: one, that increased salt intake has been linked to health problems in the general population, and that that...
I sometimes do an exercise of turning the causation around, e.g. Children with neurodivergent traits suffer from higher levels of childhood...
Oh, I forgot to mention that increasing salt intake in POTS is presumed to address hypovolemia (chronic low blood volume), i.e. you want to move...
On a personal note, I have to report that my daughter’s Doppler ultrasound testing did not happen. It is a very long story stretching back a...
@ME/CFS Skeptic , did you see this paper from 1986? It has been referenced in recent papers as describing what would now be called POTS....
Dr Peter Novak has commented that he suspects that the majority of chronic orthostatic intolerance is not accompanied by orthostatic abnormalities...
I had a look in the textbook but it doesn’t seem to cover the decision on the 30 BPM, unfortunately.
@Helene , oh dear, I imagine the specialist you saw in Calgary was Dr Raj, and now I have referenced him as saying that the 30 BPM is...
I am not sure whether blood pooling is visible “from the outside”. I know people with POTS often report blotchy or red legs and POTS specialists...
I’m afraid I can’t source this to a specific lecture, but Dr Satish Raj, when talking about TTT studies, mentioned that POTS patients feel unwell...
Conversely, people who have done it before and suspect that they are going to feel quite unwell could also have a raised heart rate.
I’ve heard several autonomic specialists say that thet are not happy with the 30 (or 40) BPM threshold. It may be that eventually cerebral blood...
Dr Satish Raj (and others) found abnormalities in the renin–angiotensin–aldosterone system (RAAS) in POTS patients. It has been called the...
Nimodipine (calcium channel blocker) has been thought to increase cerebral blood flow by being selective for dilating cerebral blood vessels....
On measuring blood volume: There is a recently accredited medical device that can measure total blood volume quickly and easily:...
Here’s a couple of studies on compression garments that might be of interest: Compression Stockings Improve Cardiac Output and Cerebral Blood...
And I suppose the question to answer is: Is there not enough blood getting to the head, due to low blood volume, blood pooling in the lower body,...
With 91% of patients in the study showing reduced cerebral blood flow, it seems that it would be worthwhile for everyone with ME/CFS to carefully...
My daughter was an editor before becoming too sick to work. She noticed when doing psychological and health questionnaires that some questions did...
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