The Thyroid Gland -
What does it do?
The thyroid gland is a small butterfly-shaped gland in the neck, it weighs less than 30g and it makes (secretes) hormones that control our metabolism. Metabolism is the way we convert food and use as energy in our cells for all bodily processes. This key controller of human metabolism and function produces several forms of thyroid hormone (these are labeled T1, T2, T3 and T4).
In particular, T3 hormone acts as a ‘signaler' in our cells to ‘get to work' and do their job. If this hormone is not produced then these signals are not transmitted and therefore many cells don't function as they should. It is estimated that T4 provides %20 activity while T3 provides a %80 activity in cell function activation.
T3 works in all human cells as the spark that creates metabolism and life. It functions in the ‘junctions' of nerves, particularly in the brain. It fires the furnaces (mitochondria) in cells, again particularly in the brain. In doing so it controls serotonin hormone which is a "feel good hormone" which we rely on for our emotional wellbeing. If T3 is not available to nerves then depression and anxiety with the destruction of mood and energy are invariably a consequence.
As stated above, when the Thyroid hormones are not produced, or their production is impaired, many other bodily functions are affected and the body becomes susceptible to dangerous disease states.