So what is this tiny gland that causes us so many problems? Here's a very brief guide to the Thyroid.
The Thyroid gland is a small, butterfly-shaped gland that normally weighs less than one ounce and is located in the neck under your voice box.
The Thyroid is responsible for producing two crucial hormones - Triiodothyronine (T3) and Thyroxine (T4).
These hormones regulate your metabolism, affecting how smoothly and quickly your body can convert calories into energy.
This then has a direct impact on things like your weight and sleeping patterns. Take a look at our Low Thyroid Diagnosis page for how to identify problems.
The production of these hormones is controlled by another hormone that is created in the Pituitary gland. When this Thyroid Stimulating Hormone (TSH) is released, it sends a signal to the Thyroid Gland to produce triiodothyronine (T3) and thyroxine (T4).
Now the science lesson is over, so go take a look at the rest of the site and see how you can solve your low thyroid problem!