This research is in its early stages and there are still lots of questions surrounding it. Quoting from a post on another forum A thyroid hormone different from T4 and T3 acts as a control of insulin production by affecting the energy producing factories (mitochondria). Like T4 , the hormone is a prohormone that has to be converted into the active form. Since many people believe there is a connection between ME and the thyroid, and between ME and mitochondria, I thought it might be of interest. Relevant links to the research concerned - these links all point to the same research in different forms - take your pick https://www.frontiersin.org/articles/10.3389/fendo.2018.00057/full https://www.sciencedirect.com/science/article/pii/S0303720717303994 https://ac.els-cdn.com/S03037207173...t=1520172607_998099ec7a790e5f06a4e05e9cf75a61 I first read about this research here https://healthunlocked.com/thyroiduk/posts/137446850/a-thyroid-hormone-controls-insulin-production Diogenes, who created the thread and commented on it, is Dr John Midgley, who is one of the advisors for the charity running that forum. He's written loads on the subject of the thyroid. Information on him can be found here : http://thyroiduk.org/tuk/About_Us/advisors.html
My wife's ME began after contracting a virus whilst recovering from a thyroid operation. n=1 obviously doesn't count for much, but definitely of interest.