performance enhancing drugs

As we wrote recently a number of Olympians swear by "cupping therapy," which they claim allows them to recover from injury and overcome muscle soreness more quickly. Although it's a bunch of nonsense, it still may have room for improvement.
Two performance-enhancing drug scandals, one involving tennis players and the other the Russian Olympic sports complex, are seemingly unconnected. That is, until you consider how both relate to Maria Sharapova, the tennis star who's currently serving a suspension for using the banned substance, meldonium, which helps oxygen uptake and endurance.