#1
Why Doesn't Caffeine Affect Me?by moniluna2
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3601I shall break it down in simple terms- the mystery of why caffeine can lift the spirits of some, and offer nothing to others.
#2
Energy System Used During Workoutby meetagajria201
201When you are doing a workout, your muscles consume a lot of energy to keep contracting & relaxing. The carbs, protein & fat you got from the protein bar you just ate is...