 You know, so there are so many different types of aspects of general health and well-being that is controlled by the thyroid. Matter of fact, there's almost nothing that isn't affected by the thyroid, including brain activity. Many times, you know, not being able to think clearly has a lot to do with the thyroid. And matter of fact, even IQ is controlled a lot by the thyroid. Interesting. Okay, when we come back, let's talk about how often should we get our thyroid checked.