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.
Its job is to make thyroid hormone. If the gland is underactive, it may not make enough thyroid hormone. Thyroid hormones control how your body uses energy. They affect almost every organ in your body. When your thyroid doesnât make enough of these hormones, parts of your body slow down.