Answer Wiki. ' denotes foot,  denotes inches, where 1 foot is equivalent of 12 inches (though I'm not American and I generally don'thave any idea how to work with US customary units, it really had quite an interesting history as the number 12 was used for conversion by many countries, including Ancient Rome). So that'd be 5 * 12 + 6 = 60 + 6 = 66 inches.
Graves' Disease. The most common cause of hyperthyroidism is Graves' disease. This is an autoimmune disorder that attacks the thyroid gland and triggers the release of high levels of thyroid hormones. One of the hallmarks of Graves' disease is a visible and uncomfortable swelling behind the eyes.
Four common thyroid disorders include Hashimoto's disease, Graves' disease, goiter, and thyroid nodules. Hashimoto's disease is also known as chronic lymphatic thyroiditis. Itâs the most common cause of hypothyroidism in the United States. It can occur at any age, but itâs most common in middle-aged women. The disease occurs when the body's immune system mistakenly attacks and slowly destroys the thyroid gland and its ability to produce hormones. Some people with mild cases of Hashimoto's disease may have no obvious symptoms.