We rely on science to tell us everything from what to eat to when  and how long to exercise, but what about relationships? Is there a  scientific explanation for why some people seem to navigate  relationships effortlessly, while others struggle? According to  psychiatrist and neuroscientist Dr. Amir Levine and Rachel Heller, the  answer is a resounding "yes."In Attached, Levine and Heller reveal how an understanding of  adult attachment-the most advanced relationship science in existence  today-can help us find and sustain love. Pioneered by psychologist John  Bowlby in the 1950s, the field of attachment posits that each of us  behaves in relationships in one of three distinct ways:     Anxious people are often preoccupied with their relationships and  tend to worry about their partner's ability to love them back      Avoidant people equate intimacy with a loss of independence and  constantly try to minimize closeness.     Secure people feel comfortable with intimacy and are usually warm  and loving.      In this book Levine and Heller guide readers in determining what  attachment style they and their mate (or potential mate) follow,  offering a road map for building stronger, more fulfilling connections  with the people they love.