The REAL Reason You're Still Exhausted

But if the T4 doesn't convert to T3, the active hormone, it doesn't matter. Your TSH is just a signal from your brain. So the blood flowing through your body, maybe it has thyroid hormone, maybe your thyroid is actually making T4. Okay, we're going to pump oil and we're going to have all this crude oil available to make gas, but we never turn it into gas, and we have all these cars waiting for gas. There's no gas. Same thing in people. But your cells, your hair, your skin, your brain fog, your constipation, it it's not going to get better because it needs that active T3.