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The thyroid is a vital gland in the body, responsible for producing a hormone called thyroxine. Thyroxine helps regulate metabolism and protein synthesis along with numerous other functions, including development.
When the thyroid produces too much thyroxine, this is referred to as hyperthyroidism or overactive thyroid. On the other hand, when too little thyroxine is produced, this is known as hypothyroidism or underactive thyroid. What are the differences between these thyroid disorders? Let’s take a look.
Hypothyroidism occurs if the thyroid gland can’t produce enough thyroid hormones. As the gland’s hormone production slows down, so does metabolism, which is directly controlled by thyroxine. In turn, this can lead to weight gain, fatigue, constipation, cold intolerance, period irregularities, and some negative side effects on the fetus if a person gets pregnant while diagnosed with hypothyroidism. Hypothyroidism is common, affecting about 4.6 percent of the United States population.
There is no cure for hypothyroidism, but there are some medications that can treat it by improving thyroid function and restoring hormone levels. Hypothyroidism is most commonly caused by a condition called Hashimoto’s thyroiditis, a condition where the body attacks its own immune system and causes the thyroid to stop producing hormones in the way it should. Hashimoto’s thyroiditis is more common in women than in men.
In patients with hyperthyroidism, the thyroid produces too much thyroxine. It will often accelerate metabolism, leading to sudden weight loss, a rapid or irregular heartbeat, sweating, and nervousness or irritability. Hyperthyroidism is commonly seen in one of three ways:
There are a few distinct differences between the two:
“Hypothyroidism vs. Hyperthyroidism: What’s the Difference?” HealthLine.com. http://www.healthline.com/health/hypothyroidism/hypothyroidism-vs-hyperthyroidism#1
“Hypothyroidism (Underactive).” American Thyroid Association. https://www.thyroid.org/hypothyroidism/
“Hyperthyroidism (overactive thyroid).” The Mayo Clinic. http://www.mayoclinic.org/diseases-conditions/hyperthyroidism/basics/definition/con-20020986
The Live Better Team
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This information is not intended to replace the advice of a medical professional. You should always consult your doctor before making decisions about your health.