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.
1. Estrogen, the Pill and Contraceptives. Many of these drugs, which are all synthetic estrogens and pregesterones for women, decrease testosterone. Testosterone is responsible for libido in females and so child prevention can easily lead to sex prevention as well. Please see this link on Female Libido and Estrogen for more details.