because sterods shrink ur balls
yes there are many performance inhancing drugs including adderall, HGH, and synthetic testosterone. Just keep in mind that any drug that can be used can also be abused. There are plenty of ways you can do yourself serious damage by self-medicating - which is why most sports and plenty of gyms have strict bans against doping.
Coffee
Yes
Drugs might actually improve one's performance.
One needs to be more specific. Which aspect of sports performance? Which sports.
Steroid's
Actually there are harmful drugs like heroine, weed and crack which will destroy all of your performance in a game. However, if you use pediatric drugs that are asgined to you they will not hurt.
Depending on the drug(s). Performance enhancing drugs is a no. Something like Ibuprofen is ok.
the use of performance enhancing drugs
none.
You can get a unfair advantage, as you build muscles illegally
Yes,it should be legalized in sports.