IN THE PAST, if a person described herself as feeling happy, sad, excited, anxious, curious, frustrated, ignored, important, lonely, joyful, and existentially depressed within the space of five minutes, she likely would have received a diagnosis. But give me five minutes on my phone, and I can accomplish this and more. Our phones are like Pandora’s boxes of emotions—and every time we check them, we open ourselves up to an unpleasant surprise.
