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 ...

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 ...

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 ...

If your mysterious weight loss, sudden intolerance to heat, and noticeably irregular period has you scouring the internet for the reasons why, you’ve probably wondered if your symptoms are the result ...

The thyroid, small, butterfly-shaped, sitting quietly at the front of your neck, quietly runs the show for many of your ...