The pituitary gland's production of thyroid-stimulating hormone (TSH) triggers the body's production of hormones by stimulating its thyroid. Monitoring TSH levels can provide insight into one’s general health status, allowing physicians to identify and diagnose specific issues such as an overactive or underactive thyroid.

A healthy TSH level is essential for overall wellbeing, with the normal range typically falling between 0.4 and 4.0 mIU/L - though this threshold may vary depending on individuals' age, gender, medical history or existing health conditions.

Note: Please exercise clinical judgement with patients. The above is only meant as a general reference and each patient should be handled on a case-by-case basis based on their unique chemistry.