Athletes who have used anabolic steroids -- as well as some coaches, trainers, and physicians -- do report significant increases in lean muscle mass, strength, and endurance. But no studies show that the substances enhance performance. Anabolic steroids do not improve agility, skill or cardiovascular capacity. Some athletes insist that these substances aid in recovery from injuries, but no hard data exists to support the claim.

"There is little compelling scientific evidence
to support the concept that steroids
enhance athletic performance.
- --------------, Ph.D., and --- H. ------, Ph.D., 1990

"Athletes would rather confess to
cocaine use than to steroids use.
- Dr. ----------, Pennsylvania State University

they are saying they don't work...sorry, I was just surfing came across this and got a good laugh..this is bullshit..I would not want to confess to cocaine. how about you?