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HGH - The Thyroid Gland and Thyroid Hormone

The thyroid gland is a butterfly shaped gland that is located over the trachea (wind pipe) just below the larynx (voice box). The thyroid gland plays a very important role in most all the metabolic processes of the body. The thyroid gland with its thyroid hormone is responsible for regulating metabolism.

How Thyroid Hormone is Made

The hypothalamus, often referred to as the body's "thermostat" is responsible for making sure the thyroid blood levels are normal. When the hypothalamus notices the thyroid blood levels decreasing it releases TRH (thyroid releasing hormone). The TRH then signals the pituitary gland to release TSH (thyroid stimulating hormone). TSH stimulates the thyroid gland to begin producing thyroid hormone.

When the body's levels of thyroid hormone become normal and the body is functioning normally the pituitary gland will cease its release of TSH and the process stops until the hypothalamus notices the thyroid hormone levels decreasing again.

Hypothyroidism

Hypothyroidism is caused by insufficient production or absorption of thyroid hormone that causes abnormally low blood thyroid hormone levels. This problem with the thyroid gland is usually brought about as a result of iodine insufficiency, a tumor, a damaged thyroid gland, or vitamin deficiencies. This type of hypothyroidism is called "primary hypothyroidism".
Hypothyroidism can also be a result of the pituitary gland and/or hypothalamus failing to function properly. This type of hypothyroidism is called "secondary hypothyroidism".

Low thyroid hormone levels may not only make you feel old, they can propel you into the conditions and diseases associated with aging. Low levels of T4 can be responsible for weight gain, since T4 plays a role in controlling the body's metabolism. The changes that are brought about as a result of the aging process such as changes in the fat to muscle ratio and the shrinkage of organs can also be caused by a lack of thyroid hormone. A decrease in the amount of lean body mass can in turn interfere with the activity of an enzyme that converts thyroxine (T4) into triodothyronine (T3). T3 is about 5 times more potent than T4.

Adequate levels of thyroid hormone are needed to regulate blood sugar, so a deficiency of thyroid hormone can lead to mature-onset diabetes. Low levels of thyroid hormone can also greatly increase the risk of cardiovascular disease due to an increase in the levels of cholesterol and triglycerides and may cause high blood pressure. Also, iodine is essential to the proper functioning of the thyroid gland, several studies that have been done have shown a correlation between low iodine levels and an increased risk of cancer.


Symptoms of Hypothyroidism

weakness, fatigue, and lack of energy
dry, flaky, pale skin
dry, coarse, dull hair, loss of hair
lack of appetite
weight gain
thinning of eye brows
sensitivity to cold
brittle nails
cold hands and feet
constipation
low body temperature

The general opinion of many in the medical community has been that the drop that occurs in hormone levels is a normal part of the aging process and replacement is not necessary.
Although some of their aging patients are having clear symptoms of insufficient thyroid hormone levels, some physicians refuse to place these ailing patients on thyroid medication because they consider their ailing condition a normal part of the aging process. These physician's poor patients are missing out on thyroid replacement therapy that should alleviate or improve most, if not all their symptoms. Thankfully this negative opinion is slowly changing.

In the older population hypothyroidism is one of the most overlooked conditions.

Self-Detection of Hypothyroidism

A test called the Barnes Basal Temperature test can show you if your thyroid hormone level may be low.

Place a thermometer next to your bed before going to sleep. Be sure to shake the thermometer down if it is a mercury thermometer.
As soon as you awake, place the thermometer under your armHealth Fitness Articles, lie quietly and leave the thermometer under your arm for about 10 minutes. Be sure to check your temperature before you move around much because an increase in your activity can cause an increase in your temperature. You want to take your temperature as soon after coming out of sleep as possible.

Article Tags: Thyroid Hormone Levels, Thyroid Gland, Thyroid Hormone, Pituitary Gland, Hormone Levels, Aging Process

Source: Free Articles from ArticlesFactory.com

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Author writes for genf20 hgh releaser, ghr1000 reviews and HGH.



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