This highly advanced laboratory package focuses on the detailed evaluation of the hypothalamic-pituitary-gonadal axis and steroid hormones in athletes. It includes the measurement of key reproductive hormones: total and free (biologically active) testosterone, estradiol, and progesterone. It also measures the regulatory hormones from the pituitary gland: luteinizing hormone (LH), follicle-stimulating hormone (FSH), and prolactin. Additionally, it measures glucocorticoid hormones: DHEA-S from the adrenal gland, and sex hormone-binding globulin (SHBG), which regulates the amount of free, active hormones. This package is designed to understand the complex interactions between hormones under training stress.