No benefit in treating mildly low thyroid function in pregnancy, study find

NIH: There appears to be no benefit to treating mildly low thyroid function during pregnancy, according to a study by a National Institutes of Health research network. Markedly low thyroid function during pregnancy has long been associated with impaired fetal neurological development and increased risk for preterm birth and miscarriage. Similarly, some studies have indicated that even mildly low thyroid function (subclinical hypothyroidism) could possibly affect a newborn’s cognitive development and increase the chances for pregnancy and birth complications.

Breakthrough study advances understanding of borderline thyroid condition

UWA: Thyroid hormones are essential for childhood development and adult health, and thyroid disease affects up to 10 per cent of people in the world - yet we are only now beginning to understand the genetic architecture of thyroid levels. A new international study of thyroid hormone levels published this month in the leading journal Nature Communications. Its lead author is an Adjunct Associate Professor Scott G. Wilson from The University of Western Australia.

Thyroiditis

Thyroiditis is the medical term for inflammation (swelling) of the thyroid gland, which can either cause abnormally low or high levels of thyroid hormones in the blood.
The thyroid gland is a butterfly-shaped gland found in the neck. It produces hormones that are released into the bloodstream to control the body's growth and metabolism. They affect processes such as heart rate and body temperature, and help convert food into energy to keep the body going.
Symptoms vary depending on the type of thyroiditis.
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Thyroid Stimulating Hormone

Thyroid Stimulating Hormone (TSH): This hormone stimulates the thyroid gland to release thyroid hormones. Thyroid hormones control basal (basic) metabolic rate and play an important role in growth and maturation. Thyroid hormones affect almost every organ in the body. 
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