A 5-minute Routine That'll Replace Your Afternoon Coffee

Our energy level and cognitive ability vary throughout the course of any given workday depending on a number of factors (e.g., how much sleep we got, when and what we ate, how much we exercised, how much caffeine we consumed, etc.). Most people turn to a cup of coffee for a boost, but for those of you who would rather not rely on caffeine for a second (or first) wind, consider trying a quick, high-intensity workout instead.