Click here for audio recording of this blog. Summary The aerobic energy system is "broken" in ME/CFS and cannot be fixed with exercise (i.e., graded exercise therapy, also known as GET).The anaerobic (glycolytic) system appears to be somewhat functional in ME/CFS (but see McGregor's work) and, in theory, can be trained to be more efficient … Continue reading Energy systems and pacing in ME/CFS