When first administering steroids, a man will have an increase in sexual function. This unfortunately is only temporary as your body becomes used to the steroid in its system. With prolonged use of a steroid, eventually, the man will feel less sexual desire, and will be less capable of maintaining an erection. Luckily, this is only temporary as well and can even be totally prevented with the use of substance such as Gonakor and HCG. Also when the steroid use is discontinued, the body’s natural level of testosterone (like the immune system) will certainly be suppressed.
This increased nutrient partitioning is the number one key reason as to why anabolic steroids are utilized in farm cattle, so as to increase the feed efficiency and output of lean meats as opposed to fatty meats. More meat for consumer consumption means more of the population can be effectively fed for a lower cost of production. Trenbolone is the primary anabolic steroid utilized to improve feed efficiency and fat-free mass addition in cattle, where it has been proven in studies to exceptionally reduce the concentration of fat deposits and drastically increase protein content (in the form of lean muscle tissue) in farm animals  .
Women - On the other hand, women often experience a "masculinization" effect from anabolic steroids, including the following: