The first study to both show and measure the effects of cognitive-enhancing drugs such as modafinil, methylphenidate (best known under the trade name Ritalin), and caffeine, on chess play is being ...

See what athletes are trying, and the side effects they risk. Aug. 5, 2013— -- intro: Since steroids hit the U.S. sports scene more than 50 years ago, athletes have found new ways to get faster ...

In recent years, the use of male performance-enhancing drugs has become increasingly popular among men of various age groups. These drugs — often marketed as solutions for erectile dysfunction or to ...