The thyroid is a butterfly-shaped gland that resides at the base of the neck and produces hormones that regulate metabolism (how the body converts food into energy). Abnormal production of thyroid hormones results in thyroid disease. Two main causes of thyroid problems are overproduction of thyroid hormones,

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Tinnitus describes any abnormal sound heard in the ear. Tinnitus may be described as a high or low pitch, ringing, roaring, buzzing, humming, cricket-like, or pulsating, among various other descriptions. Tinnitus is most commonly caused by hearing loss, but may have multiple other causes - wax build-up,

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