Finished the testosterone episode — 27 minutes, and the line I keep coming back to is this:
Total testosterone is the size of the fleet. SHBG is the harbor. And most men are measured on fleet size while the harbor quietly decides what ever gets to sea.
The clinics that skip free T, SHBG, thyroid, and the morning double-draw aren't reading the system — they're selling the shadow.
That's Module 5 territory in the course: before you change a number, read the system the number lives in.
Question for the room: if you've ever been told your testosterone was "low" — was it total or free T, and did anyone measure it twice? I read every answer.