Many people say that they are too tired to run. But after interviewing many who make this claim, I’ve come to believe that most of the reasons for this sensation is laziness (most will admit this), or low blood sugar. One of the best indicators of real fatigue is your resting pulse, taken in the morning. Your journal can track this (although some runners use a piece of graph paper). 

I, Jeff Galloway, Challenge YOU! There's still time to join Jeff's 60 day challenge

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