• 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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t3level

  1. M

    Low thyroid (t3) a result of CFS? And, does supplementation help?

    As CFS'ers, are we more prone to lower thyroid levels, specifically t3 (and maybe t4), especially the longer we are ill? And if the CFS is the cause of the lower hormone levels, does supplementation do anything? I also read an article that people who have chronic illnesses often develop lower...