Caffeine vs. carbs, which one is more important for runners?http://ow.ly/pgR3H
Trick question. Beer. RT @runnersworld: Caffeine vs. carbs, which one is more important for runners? http://ow.ly/pgR3H
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Trick question. Beer. RT @runnersworld: Caffeine vs. carbs, which one is more important for runners? http://ow.ly/pgR3H