Dr. Anna Lembke is a professor of psychiatry at Stanford University's School of Medicine and chief of its Addiction Medicine Dual Diagnosis Clinic. She's also the author of Dopamine Nation, a bestseller that uses neuroscience to explain why the pursuit of pleasure so often leads to pain. In this episode, we discuss Dr. Lembke's fascinating thesis about what happens to our brain chemistry each time we pick a device. Stay tuned for the second half, where we discuss whether a more invigorating but less happy life is worth it.