Clicked my way through another article and landed on this thought it was interesting.
selfhack.com/blog/low-thyro...
This article is about:
Low T3 / Euthyroid Sick Syndrome Causes and TreatmentMedically reviewed by Puya Yazdi, MD | Written by Mathew Eng, PharmD | Reviewed by Ana Aleksic, MSc (Pharmacy) | Last updated: January 7, 2020
Am afraid I didn't get to the end ! Lots of interesting points raised ....
There's a lot to try and make sense of, particularly when you click on some of the embedded links. Certainly not a quick read. Hopefully, someone with time and more thyroid, nutritional and science knowledge will interpret all this in a more brief format. Some links give control, hypothyroid and hyperthyroid sample data with no reference ranges which is not particularly helpful.
Batty1
Please add a brief description of what one may find when clicking on your link as per forum guidelines:
17. If you post a link, please at least explain briefly what people can expect to find if they follow the link. Links without such an introduction/explanation may be deleted.
People may be wary of clicking links without knowing what to expect, and just saying it's interesting isn't good enough I'm afraid.
No problem Seaside Susie I added the beginning of the articles explanation and his credentials I hope this satisfies the requirements.
Thanks Batty.
Really interesting article on central hypothyroidism 
The Myth that T3 causes Heart Problems?
Boron, an interesting article about supplement for T3 increase
OT :Interesting study of CFS 
