Book excerpt: Peace Between the Sheets offersa simple but revolutionary analysis: modern relationships often founder because of dysfunctional sexual habits. But when couples shift away from "heat-centered" toward "heart-centered" sexual interactions, they gain a mutual satisfaction that transcends physical gratification. Robinson advocates teaching the body a different response to sexual arousal that is driven by love over biology. The benefits include reducing stress, rejuvenating the body, helping overcome addictions, and developing a positive outlook. Over two parts, "Why" and "How," the book devotes twelve chapters to topics like "Why do We Fall Out of Love?," "Outwitting Biology," "Want to Try It?," and "The Ecstatic Exchanges."Peace Between the Sheetstackles a delicate issue with sound reasoning, solid research, and a healthy dose of humor.