Everyone feels tired now and then, but are your energy stores totally depleted? Think of it this way: If you blow a fuse in your house, you can’t expect to get power back by lighting a few candles and searching for food with a flashlight. You’ve got to find the bad fuse, replace it, and reset. Before you reach for the big Cs to snap out of your sluggishness (you know . . . cookies, candy, carbs, and caffeine concoctions), we’ve got an 11-step plan to pep you up.