Definition: Caliginousness is a term used in medicine to describe a condition where there are excessive amounts of calcium and phosphorus in the blood. This can occur when a person has an overactive thyroid gland, which causes their body to produce too much of a hormone called triiodothyronine (T3). T3 levels can be high enough to cause serious health problems if not controlled properly. Caliginousness is often caused by a deficiency in iodine. Iodine is essential for
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