Your Brain on Facebook-Harvard Business Review | Learning, Brain & Cognitive Fitness |

While Facebook's rise took many by surprise, its success was little surprise to the hundreds of researchers who study social interactions in neuroscience labs across the country. Over the last decade, these neuroscientists have uncovered some unexpected quirks of the brain, that all link to one big idea: we are far more socially oriented, at the level of brain structure and systems, than we account for in daily life.