Adrenal hormones , especially glucocorticoids such as cortisol , are essential for prenatal development of organs , particularly for the maturation of the lungs . Adrenal hormones , particularly glucocorticoids like cortisol , are essential for the prenatal development of organs , especially for the maturation of the lungs . Prenatal hormones , especially glucocorticoids such as cortisol , are essential for the development of the adrenal organs , particularly for the maturation of the lungs .