ThyrocsinThyroid hormones regulate the metabolism of proteins, fats, and carbohydrates, thus affecting how these macro nutrients produce energy. A deficiency or excess of thyroid hormones can have far reaching effects. For example, a high cortisol level can interfere with thyroid function, resulting in low thyroxine (T4) or poor conversion of T4 to the active form, triiodothyronine (T3). Each thyroid hormone has multiple important functions in the body; for