Introduction to Hypothyroidism and the Endocrine System

Brief Introduction To Hypothyroidism

Hypothyroidism is defined as a condition in which the thyroid gland does not produce enough thyroid hormone, i.e. it is a deficiency of thyroid hormone.

In some parts of the world and even in some parts of the same country, iodine deficiency in the soil can lead to iodine deficiency in people. Iodine deficiency can lead to hypothyroidism because the thyroid gland uses iodine to make thyroid hormone.

However, there are many other causes of hypothyroidism including thyroid gland disease and conditions of either the pituitary gland or the hypothalamus.

The Endocrine System

Humans, like all mammals, are composed of millions of cells, collections of which are highly specialised. We must live, grow, sustain ourselves and reproduce to continue the species. Reproduction itself is a complex process leading to conception, cell proliferation, and the development of a new male or female baby. The new human must grow and in turn, perhaps, have his or her own child.

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