Book excerpt: If you’ve been struggling with your weight, you know how hard it can be to lose those extra pounds and keep them off. In the groundbreaking Think Thin, Be Thin, nationally prominent psychotherapist Doris Wild Helmering and award-winning health writer Dianne Hales assert that the true key to a healthy body weight is a healthy attitude toward food and exercise. Their logic is simple: Your brain ultimately controls what you eat and whether you work out. If you change the way you think, you can change the way you behave. And you can lose weight. Using proven psychological strategies and scientifically based exercises, you will learn how to harness your thoughts to transform your behavior, body, and life. With practical advice on such troublesome issues as curbing emotional eating, motivating yourself to exercise, and overcoming diet plateaus, this book is the ideal complement to any diet and weight-loss program.