Hypothyroidism occurs when the thyroid gland does not produce enough thyroid hormone to meet the body’s needs. Without enough thyroid hormone, many of the body’s functions slow down.
Women are much more likely than men to develop hypothyroidism.
The thyroid is a 2-inch-long, butterfly-shaped gland weighing less than an ounce It is located in the front of the neck below the larynx, or voice box, and comprises two lobes, one on either side of the windpipe.
The thyroid is one of a group of glands that are part of the endocrine system.The endocrine glands produce, store, and release hormones into the bloodstream that travel through the body and direct the activity of the body’s cells.
Thyroid hormones regulate metabolism, which is the way the body uses energy, and affect nearly every organ in the body.
The thyroid gland makes two thyroid hormones, triiodothyronine (T3) and thyroxine (T4). Thyroid hormones affect metabolism, brain development, breathing, heart and nervous system functions, body temperature, muscle strength, skin dryness, menstrual cycles, weight, and cholesterol levels.
The thyroid gland makes two thyroid hormones, triiodothyronine (T3) and thyroxine (T4). Thyroid hormones affect metabolism, brain development, breathing, heart and nervous system functions, body temperature, muscle strength, skin dryness, menstrual cycles, weight, and cholesterol levels.
A third hormone produced by specialized cells in the thyroid gland, calcitonin, affects calcium levels in the blood and the buildup of calcium in the bones. Calcitonin is not considered a thyroid hormone.
Thyroid hormone production is regulated by thyroid-stimulating hormone (TSH), which is made by the pituitary gland. Located in the brain, the pituitary gland is the “master gland” of the endocrine system.
Thyroid hormone production is regulated by thyroid-stimulating hormone (TSH), which is made by the pituitary gland. Located in the brain, the pituitary gland is the “master gland” of the endocrine system.
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