High TSH levels can mean you have an underactive thyroid or a pituitary gland tumor. Low TSH levels can mean you have an overactive thyroid or issues with the pituitary gland. TSH levels are first ...

A TSH blood test can help your doctor determine if your thyroid gland is working as it should. In cases of hyperthyroidism, TSH levels usually fall below 0.4 mIU/L, indicating an overactive thyroid.

Elevated levels of thyroid hormone appear to harm the aging brain, increasing seniors' risk of dementia or other cognitive disorders, a new study finds. High levels of thyroid hormone -- a condition ...

Thyroid hormones play a fundamental role in cardiovascular function. They influence how the heart responds to adrenaline, how the heart uses energy and how constricted or relaxed blood vessels are.

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 ...

Millions of people live with subtle symptoms that seem harmless—but could be warning signs of a deeper hormonal issue.

Pregnancy significantly affects the thyroid gland and its function due to increased metabolic needs. For example, a maternal body requires 40% to 100% more thyroid hormones to meet the needs of the ...

The thyroid is a butterfly-shaped gland located at the front of the neck just below the Adam’s apple. It releases hormones into the bloodstream that play a vital role in the body’s energy regulation.

Maybe you feel worn out. Perhaps you’re also having trouble losing weight. Generally, you just don’t feel 100%. Could it be Hashimoto’s disease? This common autoimmune thyroid disorder is when your ...

Hyperthyroidism affects TSH levels, causing them to fall below expected ranges. Hyperthyroidism can occur when the thyroid gland in the neck produces too much thyroid hormones, including ...