• Welcome to Phoenix Rising!

    Created in 2008, Phoenix Rising is the largest and oldest forum dedicated to furthering the understanding of, and finding treatments for, complex chronic illnesses such as chronic fatigue syndrome (ME/CFS), fibromyalgia, long COVID, postural orthostatic tachycardia syndrome (POTS), mast cell activation syndrome (MCAS), and allied diseases.

    To become a member, simply click the Register button at the top right.

multi-systemic disease

  1. SWAlexander

    NIH Intramural ME/CFS Study Q&A

    The manuscript on ME/CFS published in Nature Communications provides irrefutable evidence for the biological nature of the disease. Evidence shows that it is a multi-systemic disease. Major findings in support of this are: evidence of persistent immune activation in the blood and cerebrospinal...