Doctors diagnose hypothyroidism using blood tests that measure thyroid hormone levels. The most common test looks at thyroid-stimulating hormone (TSH) and thyroxine (T4). If TSH levels are high but T4 ...

Medically reviewed by Sohaib Imtiaz, MD Key Takeaways Coffee can interfere with how your body absorbs or reacts to many ...

If a person’s mood doesn’t respond to the usual treatments or if an effective treatment seems to stop working, a thyroid problem, especially abnormally low thyroid functioning, might be to blame.

A widely prescribed thyroid medication called levothyroxine may cause bone loss and increase the risk of the bone disease ...

or taking certain kinds of medication. Anyone can develop hypothyroidism, but if you're a woman older than 60, you're most at risk of low thyroid levels. In fact, women in general are 5 to 8 times ...

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levels are low or undetectable, but thyroid hormone levels remain healthy. Usually, it is symptomless and may not need treatment. T4 (thyroxine) is a major hormone secreted by your thyroid gland.

“When the thyroid starts to fail — and the thyroid drives everything in the body, there’s nothing that doesn’t need the thyroid hormone — a low thyroid can lead to weight gain ...