The Effects of Fatigue on the Brain

The oxygen levels were lower than in the non-elite group. And there's low oxygen to the brain, because it might be something that they've acquired through their lives and the lives of their- But they're saying they can operate with lower oxygen at a high level. That's what the indication was. There were some studies where you take like a 16 to 17 minute 5k runner, and you take a 13 minute 5k runners. The 13 is world class.