In 1967, the use of drugs by (1) ... in the Olympics was banned. Before modern drugs became a problem, athletes had tried all sorts of ways to get an (2) ... advantage, including drinking a mixture of alcohol and raw egg before a race, hoping for an improvement in their times. Unfortunately, in 1960, a Danish athlete died after taking drugs and the (3) ... was taken to outlaw certain substances. Today, there are (4) ... chemicals that athletes are not allowed to take during training and officials randomly test athletes for evidence of these drugs.