The pituitary gland is an important endocrine organ located within the brain. It regulates thyroid gland activity by secreting a hormone called Thyroid Stimulating Hormone (TSH).
TSH travels to the thyroid gland to signal the production of the two main thyroid hormones - Thyroxine (T4) and Triiodothyronine (T3). A healthy thyroid gland produces greater quantities of T4 than T3. In addition, T3 is the form your cells recognise more readily and it is considered more potent than T4.
The pituitary gland itself is regulated by another gland, known as the hypothalamus.
The hypothalamus is also found within the brain. This endocrine gland produces TSH Releasing Hormone (TRH).
TRH tells the pituitary gland to stimulate the thyroid gland by releasing TSH.
T3 is the critical thyroid hormone for natural weight loss. It BOOSTS METABOLISM and FAT BURNING. Low T3 will always result in weight gain.
T3 is converted from T4 with low levels of T3 indicating that conversion is not taking place. Stress is a major reason for this as cortisol blocks conversion.
If T4 is not converting to T3 it may instead convert to reverse T3. This condition is known as Reverse T3 Dominance.
If reverse T3 levels are raised metabolism slows down, causing greater weight gain.
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