The thyroid carries out numerous important functions, including regulating temperature, metabolism, development, and growth. One aspect of this regulation is the creation of TSH or thyroid-stimulating hormone. The main thyroid chemical, T4, is directly associated with TSH. This hormone influences overall health and wellness. Learning about TSH levels and their effects can help draw attention to the small but vital thyroid and its health.


1. TSH At A Glance

TSH is created behind the bridge of the nose, in the pituitary gland. It travels to the thyroid, where it prompts the production and release of other thyroid hormones such as thyroxine (T4) and triiodothyronine (T3), which likewise affect the production of TSH. The release of these two hormones, in turn, directs the hypothalamus to end the production of thyrotropin-releasing hormone. This tells the pituitary gland to make less TSH and keeps all the hormones at normal levels.

TSH Thyroid Pituitary Gland Hypothalamus Lars Neumann / Getty Images

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