What Hyperthyroidism and Hypothyroidism Are
The thyroid is a small, butterfly-shaped gland located at the base of the neck, below the Adam’s apple. Although it only weighs about an ounce, the thyroid can have a tremendous impact on your health. The thyroid’s function is to create thyroid hormone, which regulates every aspect of your metabolism.
Facts About Hyperthyroidism and Hypothyroidism
Following is information on hyperthyroidism and hypothyroidism:
Hyperthyroidism
Hyperthyroidism is caused by an over-active thyroid that produces too much thyroid hormone. This can accelerate the metabolism, causing sudden weight loss, a rapid or irregular heartbeat, sweating, and nervousness or irritability.
Hypothyroidism
With hypothyroidism, the thyroid produces too little thyroid hormone. Symptoms of this condition vary significantly, depending on the level of hormone deficiency. Common symptoms include sensitivity to cold, constipation, dry skin, unexplained weight gain, muscle weakness, and depression.