Final answer:
The World Anti-Doping Agency prohibits the use of anabolic hormones like human growth hormone, anabolic/androgenic steroids, and prohormone supplements due to their performance-enhancing effects and health risks.
Step-by-step explanation:
True. The World Anti-Doping Agency (WADA) prohibits the use of anabolic hormones discussed, including human growth hormone, anabolic/androgenic steroids, and anabolic prohormone dietary supplements. Athletes found to have used these substances can face consequences ranging from suspension to lifetime bans in their respective sports. The reason for the prohibition is the unfair advantage they provide in terms of muscle mass and strength, and the potential for serious health risks such as heart attacks, liver damage, and altered mood and aggression. These regulations are enforced to ensure fair competition and athlete safety in sports.