... relatively little on its own, over time, the meals we order, what we say to our kids each night, whether we save or spend, how often we exercise, and the way we organize our thoughts and work routines ... with their parts.They shape our lives far more than we realize—they are so strong, in fact, that they cause our brains to cling to them at the exclusion of all else, including common sense.In one ... strong habit, the distractions worked. They slid out of their chairs, left the room, and never looked back. They hadn’t learned to crave the juice. However,once a monkey had developed a habit—once...