Not having enough iodine in the diet is a rare cause of hypothyroidism in the U.S. Other causes of primary hypothyroidism include: 1  Certain drugs such as lithium. 2  Radiation exposure to the neck. 3  Radioactive iodine used for treatment of hyperthyroidism (overactive thyroid). 4  Special x-ray dyes.
Princeton, TX. Princeton is located in northeast Texas. Princeton is part of Collin County. Princeton has 7.40 square miles of land area and 0.06 square miles of water area. As of 2010-2014, the total Princeton population is 7,520, which has grown 116.28% since 2000.
Sponsored Topics. Princeton is a city in Caldwell County, Kentucky, United States. The population was 6,329 at the 2010 census. It is the county seat of Caldwell County. Princeton was founded by Revolutionary War veteran William Prince who settled in the Eddy Grove community of what was then Livingston County, Kentucky around 1799.