In this article. Hyperthyroidism is a disorder in which your thyroid gland makes and releases more thyroid hormone than your body needs. Your doctor may say you have an  overactive thyroid , or refer to the condition as overactive thyroid disease.. Your thyroid gland is located in the front of your neck.raves' disease. The most common cause of hyperthyroidism is an autoimmune condition called Graves' disease. The body's immune system creates an antibody that causes the gland to make an excessive amount of thyroid hormone. Graves' disease runs in families, and usually affects younger women. Thyroiditis.
We use the term phobophobia to name the fear of fear or of phobias. (The word phobia comes from the Greek for fear.)
Fear is an unpleasant and often strong emotion caused by anticipation or awareness of danger.[1] Fear is completely natural and helps people to recognize and respond to dangerous situations and threats.