About five or so years ago, some CFS researchers thought they had discovered what caused CFS. Using a tilt table, they researched a condition called "neurally mediated hypotension" (NMH for short), which is a condition that results in very low blood pressure when standing upright for a period of time. They thought that perhaps this was why people with CFS were so tired all the time. I believe the end results were that some people had been misdiagnosed with CFS when they actually had NMH, and some people with CFS also had NMH and improved somewhat when the NMH was treated, but still had some sypmtoms of CFS. Also, not all people with CFS who were tested had NMH. |