As a key marker of thyroid function, the TSH (thyroid stimulating hormone) test is an essential component of health heart diagnostics (HHD). The pituitary gland secretes thyroid-stimulating hormone (TSH), which controls the thyroid gland’s synthesis of thyroid hormones (T4) and T3 (triiodothyronine). These hormones are essential for controlling the body’s metabolism, which includes heart rate.

Heart function can be significantly impacted by both hypo- and hyperthyroidism in the context of cardiovascular health. Low thyroid hormone levels, or hypothyroidism, can raise cholesterol, slow heart rate, and increase risk of heart disease. However, hyperthyroidism (excessive thyroid hormone) can result in high blood pressure, an accelerated heartbeat, and can also