Hyperthyroidism

Hyperthyroidism is the term for overactive tissue within the thyroid gland that causes an overproduction of thyroid hormones (thyroxine or "T4" and/or triiodothyronine or "T3"). Hyperthyroidism is thus a cause of thyrotoxicosis, the clinical condition of increased thyroid hormones in the blood. Hyperthyroidism and thyrotoxicosis are not synonymous. For instance, thyrotoxicosis could instead be caused by ingestion of exogenous thyroid hormone or inflammation of the thyroid gland, causing it to release its stores of thyroid hormones. The opposite of hyperthyroidism is hypothyroidism, which is an underproduction of the hormone.

This text uses material from Wikipedia licensed under CC BY-SA

Latest Spotlight News

Smartphones uncover how the world sleeps

A pioneering study of worldwide sleep patterns combines math modeling, mobile apps and big data to parse the roles society and biology each play in setting sleep schedules.

Scientists put some muscle behind their research

Michigan State University researchers used an old-fashioned neurobiology technique to explore new avenues for treatments to reverse a late-onset neurodegenerative disease that robs men of the capacity to walk, run, chew and ...

Does the moon affect our mood or actions?

Always surrounded by an aura of mystery, the moon and its possible influence over human behavior has been object of ancestral fascination and mythical speculation for centuries. While the full moon cannot turn people into ...