👉 The term "theatine" is a medical condition that refers to an abnormal increase in the levels of a substance called thyroxin, which is produced by the thyroid gland. Thyroxin helps regulate the body's metabolism and can be found in various tissues and organs throughout the body. In some cases, thyroxin can become overproduced or depleted due to factors such as illness, pregnancy, or certain medications. This increased production of thyroxin can lead to symptoms like fatigue,