http://www.poweringmuscles.com/Article-68,10_Ways_To_Train_Your_Brain_For_Better_Performance.htmlYou know the feeling. You’re two miles into a 5K road race when you begin to feel a burning sensation in your windpipe, a growing heaviness in your legs, and an intense desire to slow down in your mind. The discomfort becomes more intense with each stride. By the time you cross the finish line you have just plain had it. You can barely stand.
What causes these intense feelings of discomfort that are always associated with fatigue during hard running (or any other form of exercise)? Sports scientists used to believe that muscle fatigue was caused primarily by acid buildup and energy depletion. But within the past several years a revolution has occurred in the scientific understanding of muscle fatigue. A growing number of experts now believe that muscle fatigue is actually caused primarily by the brain. That’s right: the brain.