Dopamine is the neurotransmitter that tells our brains we want more of something. It’s what motivates us to act, but if not properly managed, it can push us to addiction and depression. Dr. Robert Lustig joins us to talk about how marketers have learned to activate dopamine in our brains – making us crave their products and leaving us empty in the process. His new book is called “The Hacking of the American Mind: The Science Behind the Corporate Takeover of Our Bodies and Brains” (Avery).