Too many people live lives of quiet desperation. They wake up with a low-level sense of dread, anxiety, or sadness. At work, they feel underutilized, unappreciated, and underwhelmed. And when they get home, they feel mentally and physically exhausted, with just enough energy to take care of the kids, fix a meal, and plop onto the couch to watch a few hours of television. Then they wake up and do it all over again.