DHEA and DHEAS act like master sex hormones, and are precursors for testosterone hormone which drives sexual interest in both men and women. In women, in particular, 80% of circulating DHEA and 100% of circulating DHEAS is produced by the adrenal glands, so stress has an immediate and significant effect in suppressing libido. Stress also increases secretion of prolactin hormone in the pituitary gland. Prolactin has a powerful libido blocking effect, and is nature’s way of reducing sexual desire when pregnancy is not desirable, such as in breastfeeding women and during times of physical and emotional stress. Rhodiola contains several unique substances, such as rosavin, rosin, and rosarin, which have beneficial effects against stress and fatigue. Rhodiola root extracts have a direct effect on the brain, to normalise levels of serotonin, dopamine and noradrenaline. Rhodiola enhances oxygen processing and energy production in cells, and reduces over-stimulation of the adrenal glands to normalise levels of stress hormones, especially cortisol and noradrenaline. Normalising adrenal gland function and damping down excess cortisol secretion allows adrenal cells to start increasing their production of DHEA and DHEAS again.