Hypothyroidism is when the thyroid gland does not produce enough thyroid hormones, whereas hyperthyroidism is when the thyroid gland produces too much. The conditions have different symptoms and ...

Hypothyroidism can disrupt energy balance, leading to fatigue and a constant feeling of being tired, even with increased sleep. The condition can shift the body’s metabolism, causing unexpected weight ...

Hypothyroidism is a condition caused by an underactive thyroid gland. It results in a slowdown of metabolism and potential imbalances in the body’s functions. Hashimoto’s thyroiditis, an autoimmune ...

This Journal feature begins with a case vignette highlighting a common clinical problem. Evidence supporting various strategies is then presented, followed by a review of formal guidelines, when they ...

Hyperthyroidism, also known as an overactive thyroid, involves overproduction of the thyroid hormones thyroxine and triiodothyronine. There are several possible causes of hyperthyroidism, including ...

Hypothyroidism, or an underactive thyroid, is when the thyroid gland produces too few hormones. Low thyroid hormone levels can cause a range of signs and symptoms, from changes in mental functioning ...