Thyroid Blood Tests: Free T4 & TSH Levels
Summary of the Article: TL;DR Hypothyroidism and Hyperthyroidism Hypothyroidism is a condition caused by an underactive thyroid gland, resulting in insufficient production of thyroid hormones. Hyperthyroidism, on the other hand, is a condition caused by an overactive thyroid gland, resulting in an excess production of thyroid hormones. Although hypothyroidism and hyperthyroidism are different diseases and have different symptoms, both are
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