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Measuring free T3 levels is important for assessing thyroid function because T3 is the biologically active hormone that regulates cellular processes.
“T3 is the biologically active hormone. T3 is the wonder that It but the a strong school of thought says, never measure T3. You don't measure T3. Why would you measure T3? But this is so uh it makes absolute no sense. Bec- If you think about all of we just discussed for this half hour, I mean, why wo”
The Peter Attia Drive · Nov 2025 · 1 episode · 104K views on this topicExtracted by a model; may misattribute who said what.