• 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.

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fight or flight

  1. Hip

    POLL: Do you sweat a lot from a 20 minute walk? Linked to overactive sympathetic nerves, and in turn, reduced Th1 antiviral immune responses

    This poll investigates how easily ME/CFS patients sweat after a walk. The answer may relate to a patient's sympathetic nervous system activity, as well as to their immune system competence. This poll is for ME/CFS patients who are able to do 20 or 30 minute walks at a reasonable pace: do you...