Stuck in Freeze? The Thyroid Piece Nobody Checked

You have been doing the work. You understand your patterns. And you are still waking up unable to face the day.
When the body decides survival is the priority, it stops converting thyroid hormone into the form your cells can use. It produces an inactive version instead, called reverse T3, and that version blocks the active hormone at the cell door. The result is a body running low and slow. It is the same physiology I call chronic functional freeze.
Dr. Amie Hornaman ranks reverse T3 as the single most important thyroid marker, ahead of free T3, and it is a marker almost nobody orders. She also holds that stress and trauma on their own can raise it.
This is Part 1 of a two part conversation.
➡️ Full show notes, research and timestamps: https://www.biologyoftrauma.com/post/can-a-thyroid-problem-keep-me-in-chronic-freeze
WHAT YOU'LL LEARN:
Why a normal TSH does not settle the question of whether your thyroid is involved
What reverse T3 is, and why Dr. Hornaman ranks it above free T3
How stress and trauma can shift thyroid function directly
Why the hibernation state and chronic functional freeze are the same physiology
What happens to the thyroid in the year after an injury or accident
Why you cannot think your way out of a decision the body made below thought
RESOURCES:
Take the free 2-Minute Assessment for Stored Trauma: https://biologyoftrauma.com/quiz
Stress or Trauma Guide
The Biology of Trauma: https://www.biologyoftrauma.com/book
The Thyroid Fix by Dr. Amie Hornaman
Part 2 releases August 20, 2026.
Grab your copy of The Biology of Trauma