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It is very possible that many people are being prescribed cholesterollowering statin drugs while their underlying problem-low thyroid function-goes unaddressed. One side effect of thyroid deficiency is high cholesterol. Subclinical hypothyroidism is estimated to occur in a significant percentage of the adult American population (Hollowell JG et al 2002). Hyperthyroidism is rare (affecting about 1 percent of the population), while mild, subclinical hypothyroidism may be much more common than most people think. An excess of thyroid hormones (hyperthyroidism) overstimulates the body, resulting in increased heart rate, anxiety, and weight loss, while a lack of thyroid hormones (hypothryoidism) can cause depression, sluggishness, weight gain, and heart failure. T3 is the active hormone that affects the metabolism of cells. While a small amount of T3 is actually made in the thyroid gland, most of it is converted in the tissues from the T4 released from the thyroid gland into the blood. The two most important thyroid hormones are thyroxine (T4) and triiodothyronine (T3). The thyroid gland uses iodine (mostly available from the diet in foods such as seafood, bread, and salt) to produce thyroid hormones. Its main function is to produce thyroid hormones, which control the body’s metabolic rate. The thyroid gland is a butterfly-shaped organ located in the neck.
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