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.
But clinical trials for several drugs specifically designed to increase HDL levels were halted early, because they didn't reduce the risk of heart attacks. Drugs containing testosterone and other anabolic steroids can artificially lower your HDL cholesterol levels.