TSH influences thyroid hormones that control heart rate, metabolism, sleep, and mood. High TSH levels usually mean the thyroid is underactive, which is called hypothyroidism. Low TSH levels suggest an ...

Metformin use was associated with a reduction in thyroid-stimulating hormone (TSH) levels among patients with type 2 diabetes who also had treated hypothyroidism, a new large database analysis finds.

Earlier this fall, Medscape Medical News spoke to endocrinologists Angela M. Leung, MD, and Karen Tsai, MD, on how to interpret abnormal results of thyroid hormone tests. To address some additional ...

A randomized crossover trial evaluated the efficacy of different l-thyroxine dosing strategies and different target thyroid-stimulating hormone (TSH) ranges in patients with treated hypothyroidism.

A hypothyroid patient’s annual lab work shows low thyroid-stimulating hormone (TSH) levels (0.20 mU/L). Her free triiodothyronine and free thyroxine levels are both in the middle of the normal range.

Graves’ disease is an autoimmune condition that causes hyperthyroidism and can affect the heart, eyes, muscles, and bones. It affects about 1.2% of people in the United States. Life expectancy depends ...