I have done recumbent exercise since a Fibromyalgia diagnosis in 1994. These days I work-out on a NU-step for 30-40 min a day. During warm weather I do deep water running for 45 min at an indoor pool. That helps my sleep disorder and helps stabilize my joints (I also have EDS). It's the absolute best way to get blood to recirculate to my brain and it dispels my brain fog in 20 min. Otherwise, it doesn't seem to improve my POTS. The infusions are the best thing overall to help my POTS in the last 9 years. But, I am afraid, at $45 x 3 a week, it will be unsustainable. I'm hoping to go down to one day a week so, I can at least continue some of the benefit.