WHAT ALL WOMEN MUST KNOW ABOUT THEIR THYROID
A few drops of blood taken from a newborn can
show whether the baby has a thyroid abnormality. If blood tests reveal a
problem, physicians can take corrective measures. Lacking sufficient thyroid hormones,
a child may become physically and mentally retarded, a condition called
cretinism. Hence, babies are usually tested just days after birth.
Thyroid impairment may be the result of a diet poor in iodine, physical
or mental stress, genetic defects, infections, disease [usually autoimmune
disease], or side effects of medications prescribed for various illnesses. An enlarged thyroid, or
goiter, may be an indication of disease. The enlargement may be diffuse or in
the form of nodules. Although genetically benign goiters should always receive
medical attention, for they might indicate a more serious condition, such as
cancer.
Just as the accelerator controls
the speed of a car’s engine, thyroid hormone regulates the rate of the body’s
metabolism- chemical activity in cells that produces energy and new tissue.
Thus, thyroid hormones promote normal tissue growth and repair, effect cardiac
rate, and maintain the production of energy for muscles and body heat.
Usually, ailing thyroids produce
either too much or too little hormone. Overproduction is called
hyperthyroidism; underproduction, hypothyroidism. Thyroid disease can develop
gradually and imperceptibly, so one may have it for years and not know it. As
with most illnesses, the outcome may be better if the diagnosis is made early.
The more common thyroid ailments
are Hashimoto’s thyroiditis and Graves’ disease. Both are autoimmune disorders-
so named because the immune system attacks normal body cells, viewing them as
foreign tissue. Hashimoto’s thyroiditis is six times more common in women than
in men and it usually result in hypothyroidism. Grave’ disease is eight times
more common in women and generally causes hyperthyroidism.
If a medical examination suggests
an underactive thyroid, tests for antibodies that attack the gland are usually
ordered. On the other hand, if the test indicates an overactive thyroid, a
thyroid scan is usually obtained, provided that the patient is not pregnant or
breast-feeding.
Hyperthyroidism usually cause
excessive agitation, unexpected weight loss, rapid heartbeat, increase in bowel
movements, irregular menstrual periods, irritability, anxiety, mood swings,
protruding eye-balls, muscular weakness, insomnia, and thin, brittle hair.
Hypothyroidism can lead to
physical and mental sluggishness, unexpected weight gain, hair loss, and
constipation, exaggerated sensitivity to cold, irregular menstrual periods,
depression, voice change [hoarseness or low voice], memory loss, and tiredness.
Proper nutrition can help to prevent
thyroid problems. For example, does your food include sufficient iodine, which
is essential for the production of thyroid hormone. Saltwater fish and other
seafood are excellent sources of this vital element.
The amount of iodine in
vegetables and meats varies according to the chemical composition of the local
soil. To compensate for a lack of the element in the food, some governments
require that iodine be added to table salt.
Also important to the thyroid is
selenium. This trace element is part of the enzyme that transforms the hormone
T4 intoT3. Again, the concentration of selenium in vegetables, meats, and milk
depends on the soil. Seafood and Brazil nuts are rich sources of selenium. Of
course, if you suspect that you have a thyroid problem, consult your doctor; do
not try to treat it yourself.
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