Know how thyroid hormone affects your heart, from heartbeat and blood pressure to risks of hyperthyroidism and hypothyroidism ...

A thyroid-stimulating immunoglobulin (TSI) test is a blood test that can help diagnose Graves’ disease, an autoimmune condition that causes an overactive thyroid. A TSI test measures levels of TSIs in ...

While hyperthyroidism affects about 1% of all Americans, women are 5 to 10 times more likely to have the condition than men, ...

Subclinical hyperthyroidism means that a person has low or undetectable levels of thyroid-stimulating hormone (TSH) with normal levels of free thyroid hormones. It usually does not cause symptoms. The ...

Accurately diagnosing thyroid function is critical to avoid harms of unnecessary treatment. This study found that age-, sex-, and race-specific reference intervals reclassified nearly half of patients ...