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The Thyroid Hormone Breakthrough: Overcoming Sexual and Hormonal Problems at Every Age

The Thyroid Hormone Breakthrough: Overcoming Sexual and Hormonal Problems at Every Age

by Mary J. Shomon

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If you're one of the millions of American women suffering from PMS, irregular periods, difficulty getting pregnant, low sex drive, postpartum depression, menopausal symptoms, or many other hormonal problems, what you may not realize is that thyroid disease could be the culprit. The Thyroid Hormone Breakthrough is a holistic guide to identifying and


If you're one of the millions of American women suffering from PMS, irregular periods, difficulty getting pregnant, low sex drive, postpartum depression, menopausal symptoms, or many other hormonal problems, what you may not realize is that thyroid disease could be the culprit. The Thyroid Hormone Breakthrough is a holistic guide to identifying and overcoming the connection between hormonal problems and the thyroid, which goes undiagnosed in more than 30 million women in the U.S. alone. It will help you identify and diagnose thyroid problems and offer strategies to cope with the effects that thyroid conditions can have on everything from puberty to menopause, including ways to avoid the pitfalls of decreased sex drive.

With information on diet and exercise, conventional and alternative therapies, and lifestyle changes that will benefit overall health, plus a risk and symptom checklist and a detailed resource section, The Thyroid Hormone Breakthrough is the most comprehensive thyroid hormone book on the market.

Editorial Reviews

Library Journal
Thirty million American women experience PMS, low sex drive, and difficulty conceiving. Thyroid disease, which is often undiagnosed, may be the cause. Shomon (The Thyroid Diet), herself a thyroid patient, has written a holistic guide to help women learn about the relationship between the thyroid gland and the other glands in the body. She explains the anatomy and physiology of the thyroid gland and its role in regulating the menstrual cycle, fertility, and metabolism; discusses the symptoms related to low or elevated thyroid levels; and encourages women to ask their physicians to check thyroid levels when they have hormonal problems, something doctors often fail to do. Shomon addresses the role of the thyroid during puberty, pregnancy, the postpartum period, and menopause and provides information about both traditional and alternative therapies. She stresses the importance of finding a physician who has experience treating thyroid conditions and notes the role of diet and exercise as part of the therapy. M. Sara Rosenthal's The Thyroid Sourcebook for Women covers similar territory. This is a useful addition to public and consumer health library collections. Barbara M. Bibel, Oakland P.L., CA Copyright 2006 Reed Business Information.

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The Thyroid Hormone Breakthrough

Overcoming Sexual and Hormonal Problems at Every Age
By Mary Shomon

HarperCollins Publishers, Inc.

Copyright © 2006 Mary Shomon
All right reserved.

ISBN: 0060798653

Chapter One

About the Thyroid and Thyroid Disease

The reasonable man adapts himself to the world;
the unreasonable one persists in trying to
adapt the world to himself.
Therefore all progress depends on the unreasonable man.
--George Bernard Shaw

The normal thyroid is a small gland weighing about an ounce that sits behind the Adam's apple in the lower part of the neck, in front of the windpipe.

It derives its name from the Greek word thyreoeides, meaning "shield-shaped." In fact, it looks like a bowtie or butterfly, with the two "wings," or lobes, of the gland connected in the middle by the isthmus.

The thyroid, like other glands, is a discrete soft body made up of a large number of vessels that produce, store, and release--or secrete--some substance. Some glands secrete their products outside the body, some inside. Those that secrete hormones and metabolic substances on the inside of the body are known as endocrine glands. The endocrine glands include the thyroid, the parathyroids, the adrenal gland, the pancreas, the pituitary gland, the pineal gland, the gonads (ovaries and testes), and the thymus.

Doctors who specialize in treating patients with endocrine problems--disorders of the endocrine glands--are calledendocrinologists.

Hormones are internal secretions carried in the blood to various organs. The thyroid's main purpose is to produce, store, and release two key hormones: triiodothyronine, also called T3; and thyroxine, or T4. The numbers 3 and 4 refer to the number of iodine molecules attached to each hormone.

Thyroid cells are the primary cells in the body capable of absorbing iodine, an essential nutrient. The thyroid takes in iodine, obtained through food, iodized salt, or supplements, and combines that iodine with the amino acid tyrosine, converting them to T3 and T4.

A healthy thyroid produces about 20 percent T3 and 80 percent T4. T3 is the biologically active hormone that is used by the cells; it is several times stronger than T4. As needed, the body converts the inactive T4 to active T3 by removing one iodine molecule. This conversion process is called monodeiodination. This conversion can take place in certain organs other than the thyroid, including the hypothalamus, a part of your brain.

T3 and T4 both exist in two forms: unbound and bound. Unbound, or free, T3 or T4 are biologically active; bound T3 and T4 are attached to the thyroid-binding globulin (TBG) protein. When measured in the blood, the free, or unbound, T3 and T4 levels tend to be most representative of the actual hormone available for use by the body.

The role of your thyroid hormones is to control your metabolism--the process by which oxygen and calories are converted to energy for use by your cells and organs. There's not a single cell in your body that doesn't depend on thyroid hormone for regulation and for energy in some form. And the thyroid hormones have a number of functions as they travel through the bloodstream. They

Enable cells to convert oxygen and calories into energy
Help the body process carbohydrates
Aid in the proper functioning of muscles
Enable proper sexual development and functioning
Help the heart pump properly and effectively
Help the body to breathe normally
Help the intestinal system digest and eliminate food
Strengthen hair, nails, and skin
Help the brain to function properly
Help with normal bone growth

Now that you have some idea of what the thyroid is and its location and function, let's go into more detail about how it fits into the overall functioning of the body.

The Thyroid Gland: Setting the Pace

When your thyroid works normally, it produces and secretes the amount of T3 and T4 necessary to keep various body functions moving at their proper pace. However, the thyroid does not do this alone. It works as part of a bigger system, one that includes the pituitary gland and the hypothalamus.

Here's how the system works. The hypothalamus constantly monitors the pace of many of the body's functions. It also monitors and reacts to a number of other factors, including environmental factors such as heat, cold, and stress. If the hypothalamus senses that certain adjustments are needed to react to any of these factors, then it produces thyrotropin-releasing hormone, known as TRH.

TRH is sent from the hypothalamus to the pituitary gland. The pituitary gland is stimulated to produce a substance called thyrotropin, but better known as thyroid-stimulating hormone, or TSH for short. The pituitary gland also monitors the body and can release TSH based on the thyroid hormone levels circulating in your blood.

TSH is sent to the thyroid gland, where it causes the thyroid to produce, store, and release more T3 and T4 thyroid hormones.

The released thyroid hormones move into the bloodstream, carried by a plasma protein known as thyroxine-binding globulin (TBG).

Now in the bloodstream, the thyroid hormone travels throughout the body, carrying orders to the various organs. Upon arriving at a particular tissue in the body, thyroid hormones interact with receptors located inside the nucleus of the cells. Interaction of the hormone and the receptor will trigger a certain function, giving directions to that tissue regarding the rate at which it should operate.

When the hypothalamus senses that the need for increased thyroid hormone production has ended, it reduces production of TRH. The reduced production of TRH in turn causes the pituitary to decrease production of TSH, and the reduced TSH levels send the message to the gland itself to slow production of thyroid hormone. By this system, many of the body's organs keep working at the proper pace.

Think of the entire feedback loop as somewhat like the thermostat in your house. It's set to maintain a particular temperature, and when it detects that your house has become too hot, it signals to either stop blowing heat (or start blowing air conditioning). And when the house becomes too cold, the heat will kick on (or the air conditioning will turn off). In similar fashion, your body is set to maintain a certain level of circulating thyroid hormone.

When thyroid disease or other conditions interfere with the system and the feedback process doesn't work, however, thyroid problems can develop.


Excerpted from The Thyroid Hormone Breakthrough by Mary Shomon Copyright © 2006 by Mary Shomon. Excerpted by permission.
All rights reserved. No part of this excerpt may be reproduced or reprinted without permission in writing from the publisher.
Excerpts are provided by Dial-A-Book Inc. solely for the personal use of visitors to this web site.

Meet the Author

Diagnosed with a thyroid disease in 1995, Mary J. Shomon has transformed her health challenges into a mission as an internationally known patient advocate. She is the founder and editor in chief of several thyroid, autoimmune, and nutrition newsletters, as well as the Internet’s most popular thyroid disease website, www.thyroid-info.com. She lives in Kensington, Maryland.

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