Until recently, almost all vocational education took place in the classroom, or on the job site, with students learning trade skills and trade theory from accredited professors or established professionals.
Antiandrogens, are compounds either natural or synthetic, that have the ability to lower the levels of testosterone and DHT (the androgens) and/or prevent the natural androgen pathways and their functions by blocking the androgen receptors in tissue.
Certain medications such as clomiphene can also lower estrogen levels. Elevated estrogen levels may occur with conditions such as obesity, diabetes, high blood pressure, and with the use of some medications, such as steroid hormones, phenothiazines, tetracyclines, and ampicillin. In women, the source of testosterone in the body is the ovaries and the adrenal glands.