#408 ‒ AMA #89: Thyroid health: interpreting symptoms, diagnosing and treating dysfunction, and navigating the gray zone

Hey, everyone. Welcome to a sneak peek ask me anything or AMA episode of the drive podcast. I'm your host, Peter Attia. At the end of this short episode, I'll explain how you can access the AMA episodes in full along with a ton of other membership benefits we've created. Or you can learn more now by going to peteratiamd.com forward slash subscribe. So without further delay, here's today's sneak peek of the Ask Me Anything episode. Welcome to Ask Me Anything, AMA Episode 89. In today's AMA, we look at managing the thyroid, an unusually complex hormonal system that is, I guess if anything, more nuanced and in some ways controversial than the management of other hormone systems. In this episode, we discuss the basic biology of the thyroid gland and how it's regulated by the brain and specifically the pituitary gland and hypothalamus. And then we talk about how thyroid activity is regulated locally at the tissues where it's used. Talk about why hypothyroidism is common but easily misdiagnosed by symptoms alone. Talk about how hypothyroid is both underdiagnosed and overdiagnosed, and why some patients on standard thyroid hormone replacement still don't feel well. We talk about the appropriate use of combination therapy, so that's T3 and T4, as opposed to just the standard treatments of T4. We talk about the theoretical thyroid supporting supplements. Is there any signal in all the noise of that stuff? And then we close with, I guess, what we would consider our framework in the clinic. So who actually needs testing, what a reasonable lab panel might look like, and then how to think about a patient whose labs are normal but who still doesn't feel right and whom you might suspect is actually deficient in their thyroid hormones. So if you're a subscriber and want to watch the full video of this podcast, you can find it on the show notes page. And if you're not a subscriber, you can watch a sneak peek of this video on our YouTube page. So without further delay, I hope you enjoy AMA number 89. Peter, welcome to another AMA. How are doing? Very good. Thanks. Well, today we're going to talk about the thyroid. So this is something that it seems like people hear about all the time, but really don't understand well. And so think I what might be helpful for people before we get into it is maybe just explaining why this is such a complex, complicated topic. Yeah. I don't I mean, I think there's probably several ways to think about that. But certainly one reason is that the regulation of thyroid hormones is quite complicated. And that's true for several reasons, but I'll state one at the outset, which is it's a hormone system for which the Goldilocks principle applies. Right? Too much is a problem, and too little is a problem. Now, if you think about testosterone, male androgens, that's not the case. Right? There's really no naturally …