Thyroid, hyper

Hyperthyroidism is an imbalance in metabolism due to an overactive thyroid gland. It can be due to a specific diisease, as in Grave’s disease, a tumor on the thyroid, inflammation or infection of the thyroid gland or ingestion of excessive iodine. Common symptoms include goiter (enlargement of the thyroid gland), fast heartbeat, nervousness, increased sweating, weight loss, increased appetite, and fatigue. Hyperthyroidism is diagnosed by a blood test for thyroid hormone levels, and is best managed by a physician.