People who play sports have a number of superstitions that they tend to take very, seriously, and MMA fighters like Mia Kang are no different. For example, Michael Jordan used to wear his shorts from college under his professional uniform every single game. It might sound crazy, but it certainly seemed to work out for him. Boxers are another group of athletes who tend to take special precautions to ensure a peak performance. One of those techniques involves abstaining from sex in the days leading up to a fight. People who abide by this rule say having sex can make you weaker and less aggressive. However, not everyone agrees with this tactic.