Medically reviewed by Kelly Wood, MD Key Takeaways TSH influences thyroid hormones that control heart rate, metabolism, sleep ...
Hyperthyroidism causes high levels of thyroid hormones in the body. In some cases, people with high thyroid hormone levels may also have higher calcium levels. Thyroid hormones can affect many ...
Subclinical hyperthyroidism means that a person has low or undetectable levels of thyroid-stimulating hormone (TSH) with normal levels of free thyroid hormones. It usually does not cause symptoms. The ...