Well-meaning academics even introduced spelling absurdities such as the âsâ in the word âisland,â a misguided Renaissance attempt to restore the etymology of the [unrelated] Latin word insula. 1  A discrete, meaningful unit of language which is approved by some authority.
What is an overactive thyroid? Hyperthyroidism happens when the thyroid becomes overactive and produces too much of its hormones. Hyperthyroidism affects women 10 times more often than men, and is most common in people aged 20-40.
Underactive thyroid, also called. hypothyroidism, occurs when the thyroid gland. does not produce enough thyroid hormone to. meet the bodyâs needs. The thyroid gland is a. 2-inch-long, butterfly-shaped gland in the front. of your neck. Thyroid hormones regulate the. way the body uses energy, so they affect nearly. every organ in your body, even the way your.