For some years now, the proven and most talented athletes from all continents have been training tirelessly for Olympics.  The preparation will ensure that the Olympians get an edge in Tokyo for the upcoming Olympics. As an Olympian, the first thing to consider during training is endurance. So, how long an athlete spends in training, and how much supplements for Olympians they consume will determine their fitness. It is factual that all athletes should get at least 8 hours of sleep everyday to get to their best performances.