Hyperthyroidism means the thyroid gland is overactive and produces more hormones than your body needs. Brain fog and other cognitive changes are potential complications of hyperthyroidism. Brain fog ...

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An overactive thyroid (hyperthyroidism) is relatively rare, affecting just 1% of people in the US. It occurs when your thyroid glands produce too much of a hormone called thyroxine. These thyroid ...

Thyroid disease is caused by the over- or underproduction of thyroid hormones. Autoimmune disorders like Graves' disease and Hashimoto's disease affect thyroid function. Lifestyle choices, such as ...

Eun Lee, MDKey TakeawaysUnexplained weight gain and fatigue could be symptoms of conditions like hypothyroidism and depression. Seeing a healthcare provider is important if you experience unexpected ...

Some research suggests there may be a link between hyperthyroidism and tachycardia. When a person has hyperthyroidism, the body produces too much thyroid hormone, which can affect the heart. People ...

Hyperthyroidism and rheumatoid arthritis (RA) have a bidirectional link. Therefore, if a person has both conditions, their doctor may use a collaborative treatment approach. RA is prevalent among ...

Evidence does not show a link between hyperthyroidism, or overactive thyroid, and blood in the urine (hematuria). Experiencing blood in your urine may result from issues with your bladder, kidneys, or ...

The thyroid is a small butterfly-shaped gland situated at the base of the neck. Despite its modest size, it exerts an ...