At every stage of life, there are moments when we need buy-in from other people. Yet most of us make a fundamental error when we try to persuade others to see things our way. This week, we talk with Niro Sivanathan of the London Business School about how to make a convincing argument. Then, we learn about what happens to our brains and bodies when we are the recipients of information. Bryan McLaughlin of Texas Tech University shares why it's so hard, but so important, to unplug from the news.