The #1 New York Times bestselling author of Grain Brain and his physician son explore how modern culture threatens to rewire our brains and damage our health, offering a practical plan for healing.Contemporary life provides us with infinite opportunities, along with endless temptations. We can eat whatever we want, whenever we want. We can immerse ourselves in the vast, enticing world of digital media. We can buy goods and services with the touch of a button or the swipe of a finger. But living ..