What is Cortisol ?
Cortisol is a glucocorticoid hormone, produced and secreted by adrenal glands using cholesterol as a precursor. The secretion of Cortisol is controlled by the pituitary gland and levels are often measured to evaluate the pituitary function and/or adrenal function. Abnormalities of Cortisol secretion can result in diseases either in the pituitary gland or the adrenals. Overactivity of either organ can lead to over secretion of cortisol, and cause Cushing’s syndrome. Book Cortisol test.