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Nutrition: Fueling Your Brain For Running

  • By Matt FItzgerald
  • Published Nov. 13, 2013
Coffee may wake you up before a morning workout, but it boasts other performance benefits as well. Photo: www.shutterstock.com

Caffeine

Fifteen years ago, before the role of the brain in exercise performance was much appreciated, scientists believed that caffeine enhanced endurance exercise performance by increasing fat burning. It is now known that caffeine enhances endurance performance by blocking adenosine receptors in the brain and thereby reducing perceived exertion.

By reducing the perception of effort associated with exercise at any given intensity, caffeine increases the intensity of exercise that is associated with the maximum tolerable degree of perceived exertion.

RELATED: Is Caffeine Truly Dehydrating?

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