This is an easy to read book that helps the reader understand that losing weight and keeping it off is more than counting the number of calories you eat and burn each day. The key to successfully losing weight and keeping it off is triggering your body to burn calories from stored body fat. You can burn calories all day long, but if you are not burning calories from stored body fat your chance of successfully losing weight will be difficult. It's important to understand that your body burns calories from carbohydrates, proteins and fats. The biggest reason for people failing in their weight loss efforts is not burning calories from stored body fat. As Dr. Lopez explains, our hormones control everything, some hormones burn fats or carbohydrates, while other hormones store fats and carbohydrates. So, if you are trying to lose weight, it's important to trigger the hormones that are going to burn fat, right! The great thing is that we have a tremendous amount of control as to which hormones we produce each day.You will learn which hormones you need to trigger in order to get the most from your diet and exercise routine, as well as, learn how the level of stress in your life can be effecting your weight loss efforts.