.... Similar findings are observed in microgravity and bed rest deconditioning, in forms of orthostatic intolerance and, to a lesser extent, in sedentary people. The circulatory consequences of reduced cardiac output may help to account for many of the findings of the syndrome. anaemia cardiac output...

... Society 2010 anaemia cardiac output chronic fatigue syndrome deconditioning echocardiography hypovolaemia The severe debilitating fatigue of CFS (chronic fatigue syndrome) is commonly accompanied by a cluster of symptoms that suggest an underlying chronic or episodic cardiovascular...