Chances are, you start each workday with high hopes and energy. You get to the office ready to take on the world. Your energy may ebb and flow, but you reach a point (often an hour or two before the day ends) where you’re just tapped out. You are physically there at work, but your brain has taken a holiday. You may find yourself doing “fake work” searching the internet (maybe reading articles like this one) or shuffling papers.