President Obama once said, “I don’t want to make decisions about what I’m eating or wearing, because I have too many other decisions to make.” He outsources every non-essential choice to his staff. And the president might be onto something the rest of us could learn from. Turns out, our brains have a limited capacity for absorbing information and exercising good judgment. But in our digital world we’re constantly bombarded with data. A new book looks at what those of us without White House staffs can do to shield our minds.