• 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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  1. SWAlexander

    A Gas Exchange Disease? Huge CDC Exercise Study Puts New Slant on ME/CFS

    Excerpt: A Gas Exchange Disease? The big problem this big study found concerned gas exchange – the ability to perfuse oxygen into the muscles and remove carbon dioxide from the blood. The ME/CFS patients did reach their anaerobic threshold at lower levels of ventilation, at lower levels of...
  2. C

    The use of oxygen as a possible screening biomarker for the diagnosis of chronic fatigue (Pifarré et al, 2022)

    Abstract Background The aim of this study was to verify whether the mean percentage of oxygen use in the aerobic-anaerobic transition phase or isocapnic buffering (IB) was lower in women with chronic fatigue syndrome (CFS) compared to healthy women, and if this variable could be used as a...
  3. Nord Wolf

    Low-Flow O2 for ME/CFS and PEM

    I've been doing some research into oxygen supplementation for asthma and Myalgic Encephalomyelitis. We are back into the warm season when lots of particulates choke the air. My lungs have been struggling greatly again. Breathing has become difficult again, especially on hot days, high...