Body Signs: From Warning Signs to False Alarms...How to Be Your Own Diagnostic Detective - Softcover

Liebmann-Smith PhD, Joan; Egan, Jacqueline

Softcover

ISBN 10: 0553384317 ISBN 13: 9780553384314

Verlag: Bantam, 2009

Inhaltsangabe

From brittle hair to hair in all the wrong places, a tingling tush, mismatched eyes, streaked nails, inverted nipples, and excessive flatulence, to name just a few, the body supplies endless signs regarding its state of health and wellness. When are these harmless and when is a visit to the doctor’s office in order? Drawn from cutting-edge research and the latest scientific literature, and vetted by a panel of medical experts, this fascinating guide covers every body part from head to toe to help you decode the often mysterious messages your body sends you.

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Über die Autorin bzw. den Autor

Joan Liebmann-Smith, Ph.D. is a medical sociologist and award-winning medical writer. Her articles have appeared in American Health, Ms., Newsweek, Redbook, Self, and Vogue, and she has appeared on numerous television talk shows, including The Oprah Winfrey Show and The Today Show. She has a daughter, Rebecca, a cat, Fazelnut, and lives with her husband, Richard—also a writer—in New York City.

Jacqueline Nardi Egan is a medical journalist who specializes in developing and writing educational programs with and for physicians, allied health professionals, patients, and consumers. She is also a former medical editor of Family Health magazine. She has a daughter, Elizabeth, two dogs, Coco and Abby, and divides her time between Darien, Connecticut, and Sag Harbor, New York.

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Chapter One
Your Hair
The Long and the Short of It


Hair defines us like no other part of the human body. It conveys to others an enormous amount of information: our age, gender, ethnicity, social status, religious and other group affiliations, personal hygiene habits, and—last but not least—our state of health. Yet the assumptions some people make based on our hair may be as false as their eyelashes. We can cover the gray, making us appear years younger; cut our hair very short or let it grow very long, making it difficult to determine our gender; or straighten curly hair or curl straight hair, making our ethnicity anyone's guess. And by adopting the hairstyles of the rich and famous, we can look like we're to the manor born when we may be struggling to make (split) ends meet.

Hair is overflowing with sexual symbolism and cultural significance. People in many parts of the world routinely—if not religiously—cover or remove it. English barristers, for example, wear wigs in court. Muslim and Orthodox Jewish women are required to cover their heads. And not only do Buddhists and some Christian monks shave their heads, but skinheads do as well.

While we're busy sending messages to the outside world by covering, cropping, curling, or coloring our hair, we should also pay attention to the messages it's sending us. Our untouched, natural hair can give us a headful of vital information that we should carefully read and heed. Your age, sex, and race, as well as where you live and the hair products you use, all affect your hair's mineral makeup.
Hair contains a myriad of minerals, from aluminum to zinc, and for many years hair analysis has been used to confirm mercury and arsenic poisoning. More recently, researchers have been able to diagnose eating disorders from hair samples.

Indeed, the quality, quantity, and color of our hair can all be signs of our physical well-being. No wonder hair is said to be a barometer of health.

Starting at the top
Hair texture changes

Hair is made up mostly of dead protein (keratin), but that doesn't mean it's supposed to lie there listlessly. Dry, brittle hair and split ends can all be signs that you're mistreating your hair with excessive washing, brushing, drying, dyeing, or bleaching. However, these hair shaft disorders, as they're called, can also be signs of stress, hormonal changes, nutritional deficiencies, and thyroid disease.

If you notice, for example, that your formerly luxuriant locks tangle easily or have become dry, brittle, or coarse, don't be so quick to rush off and buy the latest expensive new hair product. You may, in fact, have the classic signs of hypothyroidism—a fairly common but often underdiagnosed condition, especially among women. (See Appendix I.) When the thyroid gland, which regulates metabolism, fails to produce enough thyroid hormone, hair growth—as well as other body functions—slows down. Hair texture change can signal iodine deficiency as well, which is also implicated in thyroid disease. (See Chapter 6.)

Of course, texture changes may merely be an indicator of the natural hormone changes of pregnancy or menopause. During pregnancy, dry hair may become oilier or shinier, while oily hair can become drier and duller. Previously curly hair may become straighter and straight hair curlier. Hair may even become thicker, but this is due to the slowing down of normal hair loss that typically occurs in pregnancy rather than the thickening of individual hairs. (See Hair Loss in Women, below.)
During menopause, when estrogen levels drop, many women notice that their hair lacks softness and luster. The estrogen loss can cause hair shafts to thin and dry out, so new hairs will be duller and less manageable. New hair growth also tapers off
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Both hair texture change and hair loss are also common reactions to chemotherapy or radiation treatment for cancer. The good news is that both these changes are usually temporary.

Hair color changes

Hair color, like eye and skin color, depends primarily on how much melanin (color-producing pigments) we inherit from our parents.

If your hair color changes and you haven't been hitting the bleach or hair dye bottle, it can be a sign of a variety of factors, both internal and external. For example, hair color—like hair texture—can change temporarily after chemotherapy. A blonde may become dismayed to find her hair growing in dark brown or black, while a former brunette may be thrilled to find that she's become a blonde. Hair color changes can also signal genetic, metabolic, nutritional, or other disorders. They can even be the result of environmental factors.

Green Hair

Many of us look forward to our hair getting lighter from the summer sun. But if your hair looks more green than platinum, it's not the sun's fault. It's more likely to be a tip-off that your swimming pool is heavily chlorinated, or that copper from water pipes is seeping into your pool water. In fact, green hair used to be fairly common among copper- and brassworkers.

If you haven't been swimming lately, your sea-green hair can be a sign that you enjoy bathing in a tub that's been cleaned with chlorine-containing products. If your green hair doesn't seem related to swimming or bathing, it could be a more serious sign of excess exposure to mercury, which can cause neurological, muscular, sensory, and cognitive damage.

Striped Hair

Green hair may be medically unimportant, but striped hair is not. Known as the flag sign, the striped hair is actually bands of discolored or depigmented hair. The stripes—usually blond, gray, or reddish—are often red flags for severe nutritional deficiencies, for example, of protein or iron. Although much more common in underdeveloped countries, the flag sign can be seen in children living in poverty throughout the world.

Striped hair can also signal ulcerative colitis or other conditions or events that deplete protein, such as irritable bowel syndrome (see Chapter 8) or extensive bowel surgery. It might also be a telltale sign of the eating disorder anorexia nervosa, which depletes a person's protein supply.

Prematurely Gray Hair

When most people's hair turns gray, it's usually a normal—albeit not very welcome—sign of aging. As we age, we produce less melanin, the pigment that gives our hair and skin its color. But when your hair turns gray before its time, it can be a harmless, hereditary condition—or a warning sign that something is wrong. The definition of premature graying—medically known as canities—varies among doctors. Some define it as having half a head of gray hair by age 40; others say it's the graying of hair before the age of 20 in whites and before 30 in blacks.

Some people with prematurely gray hair may unknowingly suffer from pernicious anemia, a severe form of anemia in which there is a reduction of red blood cells caused by the body's inability to absorb vitamin B12. Pernicious anemia is commonly found in older adults. Other common signs of pernicious anemia include paleness, weakness, mouth and tongue problems, tingling and numbness in hands and feet, and an unsteady gait. If untreated, it can cause serious gastrointestinal or neurological problems. The good news is that not only is it treated easily, but hair often returns to its natural color.

Early graying can also signal various autoimmune disorders, including Graves' disease, the most common form of hyperthyroidism (see Appendix I). A recent Irish study has identified prematurely gray hair as a sign of low bone mineral density (osteopenia) in women with Graves' disease. Another autoimmune disorder signaled by premature graying, as well as by white patches on the skin, is vitiligo, (see Chapter 9),...

Details zur Ausgabe

• Verlag: Bantam
• Erscheinungsdatum: 2009
• Sprache: Englisch
• ISBN 10: 0553384317
• ISBN 13: 9780553384314
• Einband: Taschenbuch
• Anzahl der Seiten: 336
• Kontakt zum Hersteller: Nicht verfügbar
• Verantwortliche Person: Nicht verfügbar