The Human Thyroid Gland
What is the Thyroid?
thyroid is a small, butterfly-shaped endocrine gland located at the back of the
neck below the Adam's apple. It is the size of 2 cheeries. The thyroid consists of two lobes. The lobes are
wrapped around the windpipe.
The thyroid secretes (releases) three important hormones – tri-iodothyronine (T3), thyroxine (T4) and calcitonin.
The thyroid produces hormones that control metabolism. Metabolism is the sum of the physical and chemical processes in an organism by which its material substance is produced, maintained, and destroyed. Every living substance has a metabolism.
The thyroid produces hormones that influence every organ, tissue, and cell in the body. Thyroid hormones also control heart rate, body weight, body temperature, energy level, muscle strength and menstrual regularity.
When the thyroid becomes faulty or malfunctions, metabolic disorders occur. There are two main types of thyroid malfunctions: hypothyroidism and hyperthyroidism.
Thyroid and infertility
Thyroid disorders cause irregular or a complete absence of ovulation, and thereby lead to difficulty conceiving.
Hypothyroidism occurs when the thyroid gland produces too little amounts of thyroid hormone. Hypothyroidism causes the body to function at a lower rate.
Hypothyroidism can contribute to heart disease.
It can contribute to heart disease because one of the side effects is an increased
amount of LDL (bad) cholesterol circulating in the
Hyperthyroidism occurs when the thyroid gland produces too much hormone. Hyperthyroidism increases the rate at which each cell functions, increasing all the reactions that occur in the body. Some of the symptoms of hyperthyroidism are: nervousness, decreased menstrual flow, weight loss, and irregular heartbeat.
People with hyperthyroidism may experience problems with infertility and miscarriage.
Symptoms of Thyroid Disease
of the most common symptoms for thyroid disease are: fatigue, changes in weight, mood swings,
Thyroid Disease Statistics
There are more than 20 million Americans with thyroid disease. Most of the 20 million do not know they have thyroid disease.
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