This book is about pleasure.. Most important,  how to find the delicate balance between the two, and why now more than ever finding balance is essential. We’re living in a time of unprecedented access to high-reward, high-dopamine stimuli: drugs, food, news, gambling, shopping, gaming, texting, sexting, Facebooking, Instagramming, YouTubing, tweeting  . The increased numbers, variety, and potency is staggering. The smartphone is the modern-day hypodermic needle