The State University of New Jersey. They say the exercise-caffeine combo can deflect some of the damaging effects of the sun's rays. BAD HABIT: You train hard on easy days This is the most common training mistake of all. You feel good on a scheduled easy
, what you ate, the weather and even your general mood before, during and after each run," adds Wood. "It'll help you identify patterns and the cause and effect of good and bad runs." And training logs don't have a ‘use by' date. "I have all my training
