Ben Johnson of Canada appeared to win the 100-metre final at the 1988 Olympics in Seoul but he tested positive for an anabolic steroid and had his gold medal taken away. AP
Ben Johnson of Canada appeared to win the 100-metre final at the 1988 Olympics in Seoul but he tested positive for an anabolic steroid and had his gold medal taken away. AP

Longevity scientists in UAE keep close eye on divisive drug-fuelled athletics event