In my earlier post about circadian rhythms in thyroid health, I asked two quiz questions about TSH, FT3 and FT4 variability. First I asked “Which value varies the most during the day, a) TSH, b) Free T3 or c) Free… Read More ›
HPT axis
Circadian rhythms of TSH, Free T4 and Free T3 in thyroid health
Let’s take a thyroid hormone rhythm quiz to get into this article. It’s only two questions long, and both questions and answers are in this introduction. Question #1. Which value varies the most during the day, a) TSH, b) Free… Read More ›
Infographic: Thyroid hormone journey
This summary blog post will take you through a visual journey as you follow thyroid hormones through bloodstream, transporters, cells, and receptors. This infographic is not like most others you’ll see that portray a gland-centric view of the HPT axis…. Read More ›
Visual bias: The pituitary gland in HPT axis diagrams
Too many diagrams focus on the “HPT axis,” in which the Hypothalamus, the Pituitary, and Thyroid gland are the biggest icons. Take for example this diagram from Ortiga-Carvalho’s chapter in a physiology textbook. The huge, super-ballsy pituitary. Seriously? In diagrams… Read More ›
Summary: T3 secretion and T4-T3 conversion
My article published May 4, 2020, “Thyroid T3 secretion compensates for T4-T3 conversion” has received very strong positive feedback. People are saying that it’s a ground-breaking, game-changing article on the HPT axis in health versus thyroid disease, and that it… Read More ›
Thyroid T3 secretion compensates for T4-T3 conversion
In health, what happens when you don’t convert enough T4 into T3 hormone? Your healthy thyroid secretes more T3. This is an aspect of the amazing adaptibility of the thyroid gland. However, a common generalization makes it sound like our… Read More ›
7 ways to raise TSH without reducing thyroid dose
You’ve just come to your doctor for your annual check-up. Either you feel fine and you want to get a renewal of your current thyroid prescription, or you feel rather hypothyroid and you’re hoping to get an increased dose. But… Read More ›
Screening for central hypothyroidism during thyroid therapy
If even the experts complain that it’s difficult to diagnose central hypothyroidism before thyroid therapy, it can be almost impossible for the medical system to begin to see your central hypothyroidism during thyroid therapy. Once you are on thyroid therapy… Read More ›